Jinja list dictionary keys. You need to use the name of the key.


Jinja list dictionary keys 2. dict for easy linking to the plugin documentation and to avoid conflicting with other collections that may have the same lookup I've had better luck putting the dictionary into a list of lists, then have the html loop through the list and print the table. yml and save them into dict include_vars: file: ". The value associated with each key is a list of Filter Jinja list by key existence. Ansible filter dict based on key presence and list values. Improve this question. Ansible / jinja2 list of dicts of lists. nodes: node1: 192. Merging Ansible dictionaries. items()|sort(attribute="sort_by_?") Key takeaways: Dictionary does not support append(). Improve this answer. items() %} {% endfor %} This code snippet loops through each key-value pair in the data dictionary. . Ansible filter by attribute contains a value. Without testing, I believe the variable name is the one that holds the {'Luke Skywalker': {('Jedi', 100)} part of the dictionary in your example. It’s a native capability. startswith("entry") and k. native_eval, which is called by NativeTemplate. how can i map a list to a dict with computed values keyed by the list items in ansible? 1. some_js_var = [{% for x in y %} {{ x }} {% endfor %}] What you refer to as 'the rest of the dict' is actually the value of the key you managed to retrieve successfully. List of dictionaries in jinja. @sjas so this should not be the accepted answer ;). How do I filter a list by existance of an attribute in ansible/jinja2? 7. How to manipulate a list of dictionaries in Ansible? 2. 3 and 4. 177. How to avoid "RuntimeError: dictionary changed size during iteration" error? 0. You can write a template filter to do this, as suggested in the answers to this Stack Overflow question. Follow edited May 3, "Flattening" a list into dictionary key/value in ansible. last at all, instead, you just need to check the sequence of each dictionary key. The page is not working not sure if this is the correct syntax The page is not working not sure if this is the correct syntax My Jinja for loop prints the first values of my list the right amount of times, but it is just not getting the right values. The carryover is there because there could be multiple frontends and backends and those would be a dict under frontend. How to display a list of items in a single line using Jinja2? 2. groupby(Dict, key=itemgetter(group_filter)): Key_list. 455. Merging two list of dictionaries I want to add new key/value pairs to dictionaries. 5. Commented Nov 2, 2023 at 20:38. Here's an example of what I'm trying to do {% for field in fields %} &lt;td&gt; {{ item I have a list of items, which all appear as keys in a certain dictionary. I am installing list of packages in ansible registering variable and outputting it with debug: community. Jinja2 - Loop over list to build a table. It would seem like json_query is the filter to use, but I can't figure out the syntax. Jinja2 looping over If you can install the collection community. But while your next Python loop looks like: for x in i['interfaces']: Your corresponding Jinja loop is: I have list of dictionaries i want to count how many times "P" appears in that dictionaries and update total as key and give value count {% set my_list = [ {'key1': "P",'key2': & Skip to main content Stack Overflow So far I managed to print a list with key-value pairs attendance list {'Student ID': '15000000', 'Class attended': 1,'Total average score': 0. New unpacking generalizations (PEP 448) were introduced with Python 3. Stack Exchange Network. 2 @ReslanTinawi It's not about the keys. render(dict) Can anyone tell me how I can accomplish this? I have over a thousand tokenized files and up to a few dozen I have no experience with jinja, but if it's anything like django and regular python, iterating over it will give you its keys in data. item Skip to main content. About; Products OverflowAI; Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Right now test_list has stored a list of dictionaries (with the key's being the DB columns). Variables may have attributes or elements on them you can access too. items(): if k. Say. It is possible though. Currently, I've managed to iterate Jinja: Efficient Data Grouping with groupby() 2025-01-13. – Is there another method to access the element in the list in jinja? jinja2; Share. Ansible check if value exists in dictionary list . Having said that, Jinja (and other templating languages) aren't meant to be too complex (it would be really bad for readability if you had a lot of logic in your templates, for example). In this article, we will explore various easy and efficient methods to achieve this. py': So I use Jinja2 for an Ansible task as a template to create a file, I have a dictionary defined in the Default Variable Skip to main content. append(key) What is the most pythonic way to group by multiple keys and summarize/average values of a list of dictionaries in Python please? Say I have a list of dictionaries as below: input = [ {'dept': '001 Skip to main content. 5145240400000013}, {'product': 'ElastiCache', 'cost': 1. Hot Network Questions Knights and Knaves with Layers How to deal with academic loneliness? I'm trying to display the contents and structure of a dictionary in the form of a bunch of nested un-ordered lists. I'm passing a dictionary to a Jinja template like this: locations = {1: "Baltimore, MD"} I want the value to appear like this: Baltimore, MD But, when I print the value in my Jinja template, it Within an Ansible vars file, I want to convert a dict of dicts into a list of dicts that I can pass to an external role from Ansible Galaxy. render(). Another option would be to use dict2items, once again, take I have problem to display data in jinja template. ansible: filter one element of the list to string. If you're unsure of what dictionaries or lists are in Ansible, give his article a quick read and then come back here. Viewed 5k times 1 . By using loops and accessing dictionary keys, we can easily extract and present information from complex For instance, each row of your catalog can be treated as a dictionary, with the names of columns serving as keys. Ansible jinja template using with_dict. How to loop My requirement is 'a' key with same value in dict from all the list should be merged and if a particular key does not exist in the dicts while merging, then assign 0 for those keys or just omit those keys. Pass the list of dictionaries as a variable in the call totemplate. - hosts: localhost gather_facts: no vars: - mylst: - How to loop dictionary with multiple values in Jinja? 1. I'm trying to a check on each key to see if the second value in the arr How to combine json dictionary and lists in jinja template. 1 and 2. The expression below gives the same result. Create var based on list in dict. The outer Python loop is: for i in mylist: And the corresponding Jinja loop is: {% for obj in mylist %} That looks fine. 9. List in lists in jinja2 template. using Jinja to access dictionary in for loop. This example has val3 and val4: with the content — 3. As a requisite, I am in need of creating the dictionary with all names inside double quotes instead of default single quotes which Python uses. Hot Network Questions Can I mount a heavy object to a wall stud near the edge? How to extract lines by condition from whereby token001and token002 are the values of keys in the Dictionary. I would like to use Jinja2 filters to lookup each list item in the dictionary and return the corresponding value, in a list The keys() method is the one from Python, that return a view representing a list of the keys of that dictionary. endswith(4): ## or use a regex pattern here return v Running a for-loop over a Jinja2 dictionary At the time of this posting, iterating over dictionaries inside a Jinja template is poorly documented, especially if you need access to the jinja dictionary keys and it's something I end up doing alot. Ansible iterate over array and use filter . nested dictionary variable is not evaluated correctly with I am trying to add a comma (using jinja) between a list of items which are in an array of dictionaries in python. This was before I (re)discovered that there is still an unsolved issue and an That doesn't help the OP, since they're writing templates in Jinja for a web app (Jinja is used by default in Flask, as they mentioned). Use directly the dict keys in a Jinja2 template. To iterate over a list of dictionaries in a Jinja template: 1. Some tasks I need to loop only over dict keys, this works fine - name: "just debug" debug: msg={{ item }} with_items: "{{ vhosts. sort is a Jinja Looping through my_list, the output is sorted based on the value of the "fruit" key in each dictionary. If you want to be sure that you write a dictionary in a specific order you have to keep the list of the keys. 4. Print comma separated values from list in same <p> in Jinja2. How to print a dictionary within a list in jinja2? 3. Share. last, you could conditionally add the comma or not: Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Your outer loop loops over a the net_neighbors dictionary. Share Improve this answer In Airflow 1, Jinja expressions are always evaluated as strings. This fundamentally does not address the question. Hot Network Questions Filled in arc using TikZ Basic Terminal Calculator in C++ cardboard counter - what In Python, we will encounter some situations where we need to extract the keys from a dictionary as a list. iteritems(): # or . The easiest fix is to loop through the items of the dictionary, then you have they key (model) and value (list of fields) at the same time. jinja2 throwing TemplateSyntaxError: unexpected char. 1, the expression to access key foo from the datastore was {{ system. ). I want to display the items that are True, along with the count of those items. Final I have a list of dictionaries in an ansible variable. Access Jinja2 dict_keys values inside templete. Original my_list: [{'fruit': 'apple', 'veggy': 'pepper'}, {'veggy': 'tomato I'd like to reduce the above to a dictionary with only the packages, that have the latest-attribute in their values. that's what the json module does for you (one visible conversion here is that hte json string Still a workaround though. Commented Aug 19, 2015 at 8:16. Ansible Jinja2 Filter - Filter data and create a list from data. – Hadrien TOMA. How to apply dictionary to list of items with Jinja filter? 2. One is dictsort and the other is sort. This is where Each dictionary represents a person with attributes like name, age, and country. Otherwise, keep reading, as I'm confident you'll find it In Jinja2 whats the easiest way to set all the keys to be the values of a dictionary? 4. 17. With the sorted list, the keys are sorted alphabetically (fruit precedes veggy in the second dictionary). schemas | I have a list of dictionaries where each dict has a boolean entry. You will have to use dict2items and items2dict to work around that. In most cases, you can use the short plugin name dict2items. The second approach renders characters that will be interpreted as a dictionary by ast. Joining two lists of dicts based on unique key in Jinja2/Ansible using map() function. Moreover, in YAML, there is no guarantee in what order the keys of a dictionary are stored. formatting and use of dictionaries in jinja2 templates . Here I am giving just a generic example in my own way for your understanding. I have a single list of dictionaries that have the same ID but with different key value pairs, id like to join all those key values pairs into a single list entry, below is a sample of data and the desired output. You can use a dot (. Perfect for pulling out IPs, interfaces, or other attributes within Python >= 3. 7. Environment. in python; d = {key: value}. Input: targets: ["abc", "qwe", "def"] I know that the server will always be xyz. harry, male, 1994 samuel, male, 1998 it will print . generating tables with jinja2. If so, there is no need to use loop. The template language does not provide a way to display json[key], where key is a variable. foo }} . [{key:'value'},{key:'secondValue'}] Comma separating a list of dictionaries using jinja. 2024-12-13 {% for key, value in data. You'll have to either subclass the operator or build in logic to your custom operator to translate the stringified list/dict arg as necessary. Commented Nov 9, 2018 at 9:30. By default, a dictionary conversion to a list returns the list of the dictionary's keys. After reading it, this felt like a perfect opportunity to follow up with some related content. for key 'a' with value 1, from above example we have 2 dicts, one from list1 i. Split AND sort list Jinja/Pelican. 0. I tried some things for adding key/value pairs, Please note that the dictionary is loaded from a json file and I POST it to the Grafana REST API. results -@}@ @{{@ row. This filter plugin is part of ansible-core and included in all Ansible installations. Iterating over a dictionary produces a list of keys. dictsort {% for key, value in dictionary|dictsort %} This way of doing it gives you the key, value pairs directly, without . 11 node2: 192. Loop through list of tuples by adding first element and remove second element from dataframe. – Reslan Tinawi. I have Filter Jinja list by key existence. Create a list of dictionaries from another list and a static value, using Jinja2. Sort dict of dict in jinja2 loop. it takes python objects of any form as arguments (a list of dictionaries in your case) . Using list() The simplest and most efficient way to convert dictionary keys to lists is by using a built-in list() function. When working with Jinja2 templates, you may need to check if a A dictionary of lists is a data structure where: Each key in the dictionary represents a field or attribute (like description, price, qty, etc. Context object, which is essentially a dictionary of the global variables/functions I was able to create lists for both feeder and correct, but I am not able to merge them as key-value pairs of a dictionary to loop through it. gene|join(',', attribute='gene')@}}@ @{@ endfor @}@} However, each gene belongs to a dictionary in an array of dictionaries in python, such as I have a list of dicts where each dictionary has the same keys, just different values. Flask/Jinja2 - Iterating over nested dictionaries. 0. I have a nested dictionary with the following structure: dict = {"12-30-2019": {"Mea There is, sadly, no such a filter in native Jinja to filter a dictionary or to make a list out of a dictionary, like the answers you found for Ansible, that are using dict2items. x)) to apply dict2items to every element of the list. – David Weber. Iterating through the List of Dictionaries. but you have to convert the json string to that first. The key variable will hold the dictionary key, and the value variable will hold the corresponding value. For example, -1; this is broken and insecure in the general case, and there is only a narrow set of circumstances in which using it is okay. 8} code in html {% for key,value in attendance. So, I want a list of dictionaries each with the contents of that key. e {'a':0,'b':23} and one is list3, last dict i. You can mess around with the variables in templates provided they are passed in by the application. May not be accepted answer but I believe this is the better way to go. But I think that would screw up my "for" loop, so I'll live with the parentheses. keys() }}" But some tasks I would like to iterate over list from each key, and append the key as another property of dict, so I would like to combine/create new dict from this original dict, that will look like this: Filter Jinja list by key existence. 632000000000001}, {'product': ' Skip to main content. I want to sort the whole list of dictionaries alphabetically on the basis of key name but have to exclude the last element of the list, which name is Total. 5 allowing you to now easily do: >>> newdict = {1:0, 2:0, 3:0} >>> [*newdict] [1, 2, 3] Unpacking with * works with any object that is iterable and, since dictionaries return their keys when iterated through, you can easily create a list by using it Here are two approaches. Filter elements from list of dictionaries in ansible that match a condition. env has a key with name n1 I imagine this can be done with a nested loop, but cannot figure out how. About; Products OverflowAI; Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; The Django template language supports looking up dictionary keys as follows: {{ json. How to evaluate a variable within a dict in jinja. I have a dictionary which looks like: data = { 'Game1': {'win': 0, 'lost': 2, 'all': 2}, 'Game2': {'win': 1, 'lost': 0, 'all': 1}, 'Game3': { Skip to main content. jinja2 dictsort not sorting. ': {'walk. Something like this: I'm trying to retrieve entries from a python dictionary in jinja2, but the problem is I don't know what key I want to access ahead of time - the key is stored in a variable called s. How to iterate through a list of dictionaries in Jinja template? 1. Can I use a Jinja for/loop to iterate inside a javascript list? It doesnt seem to work. dict2items for easy linking to the plugin documentation and to avoid conflicting with other collections that Access value of specified dictionary key within a list of dictionaries in Ansible. Python, Flask, and jinja templates - How to iterate over a dictionary created server side . values() %} {% for a_value in list_value I can see many similar questions on here but not one that I can find that helps me get the desired output. Nested Dictionary to Jinja Table w/ Flask. extend([key,value]) #Note that this will change depending on the structure of your dictionary Table. Follow edited May What I want to implement is to iterate not only through keys in this dictionary but through values assigned to this key as well. Input: postgres_users: dc1: name: user_dc1 password: pass_dc1 dc2: name: user_dc2 password: pass_dc2 dc3: name: user_dc3 password: pass_dc3 Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Template variables are defined by the context dictionary passed to the template. As with lists, they are used to store multiple values of arbitrary data types. Modified I want to extract the names of all customers when any of the dicts in the list mylst. This said, using loop. Filtering a dict in Ansible . for k, v in mydict. One key/value pair is static and always the same, the other changes value. key1 }} See the template docs on variables and lookups. Precise use case is sorting dates and corresponding events. How to loop dictionary with multiple values in Jinja? 1. I tried to initialize a dictionary from a list, then changed the first element in the list (mutate it). I'd like to allow saving an 'id' key in the file and remove the key before POSTing it. yml" name: dict "dict" contains the jinja loop index; nested loop jinja2; loop through list of dictionaries python; loop through list of lists jinja; iterate over dictionary django; Jinja for items in list; looping over R dictionary; python Looping through all key-value pairs dictionary; Dictionary Loop thru a dictionary's keys. Add a comment | I'm working on a backend flask/jinja2 app and I know how to join a list of strings; however, I need to join a list of dictionaries. Then, if you want to work with your catalog data in Jinja, you can create a list Oct 4, 2021 · I'm using them to dinamicaly generate cards in HTML so I need every card to have one value of each key. general use the filter lists_mergeby. Trouble with python dictionaries and iterating through them with Jinja. ansible filter to map array and put in json template. items() in Python 3 temp = [] temp. You can add the new item to the data dictionary by using the {% do %} tag: {% do data. 1 "Flattening" a list into dictionary key/value in ansible. Yes, you have a security warning, but even so, this is a bad answer; there are clean ways of doing this Using jinja variable as dictionary key. I have a list of dictionaries called data. Hot Network Questions The extremum of the function is not found When did the You can use the map filter (Template Designer Documentation — Jinja Documentation (3. How do you sort a list in Jinja2 by X element? 12. Python dictionary in Jinja. Original my_list: [{'fruit': 'orange', 'veggy': 'pepper'}, {'veggy': 'tomato', 'fruit': 'apple'}] Unsorted: value = orange value = apple Sorted: value = apple value = orange . Example:. Jinja List Issue. 6,475 6 6 gold badges 36 36 silver badges 56 56 bronze badges. 56. The dictionary where the name is Total should be the last element of the list. list contains. About; Products OverflowAI; Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent How to lookup a dictionary using a variable key within Jinja template? utc. For example, you will need to change blogpost[0] to blogpost['name']. Jan 5, 2021 I have checked the types of the list and the items and they are confirmed as being a ‘list’ and ‘dict’ respectively. course. I'm very new to web dev/Flask/HTML so apologies in advance if my problem is not laid out clearly. append(temp) Ansible Jinja template combined list into dict. That is, for each iteration of your outer loop, interface will be a string like Ethernet0/0, Ethernet0/1, etc. Hot Network Questions Doing something for its own sake How to display three items per line in enumerate environment Did the northern nation of Israel or the southern nation of Judah date their reigns using years beginning in the fall, from the beginning of Tishri? I have a dictionary in json that Im passing though into jinja using python. items(), and sorts the dictionaries by key. Then, if you want to work with your catalog data in Jinja, you can create a list of dictionaries or even a dictionary of dictionaries with the keys being the ids of the rows and the Here is a basic example of how to loop over a list of values in Jinja. sort {% for key, value in dictionary. 146. Merge two complex dictionaries in an ansible playbook. For example, use first value in name, second in comment and so on. results contains a list of dictionaries (or maps/hashes - please correct me if I am wrong) with the data related to each package To check for key existence in a dictionary within Jinja2 templates, you can use the in operator in a conditional statement. Printing a list in a django template without a trailing comma. I was able to update it, probably a better way to do this, but seems to work ok: Edit (Updated Working Code) {%- set key = 0 -%} {%- set value = 1 -%} {%- set carryovers = Transform dictionary keys to uppercase. This criterion is often a key or attribute of the items. 5 alternative: unpack into a list literal [*newdict]. So in the front end I want to loop through index[0], then index[1], then [2], accessing the key and values for each. Is it possible? key Skip to main content. Ansible iterate over array and use filter. The data that I've managed to pull together looks like this, {'. There Using ansible to merge object values with the same key in a list of dictionaries variable. I figured out how to sort given dicts by key or by value. With Flask's templates you can also use the dot notation, so the blogpost name would become blogpost. Ansible Jinja template combined list into dict. name. Define a Jinja context function to return the jinja2. How to iterate through a list of dictionaries in Jinja template? 2. In my opinion, it's easier to start with a dictionary and convert it to a list of items when needed, then it is to go the other direction. Use a nested forloop to ite Dec 13, 2024 · How to Use dict() in Jinja. Some dictionaries have the same value in the field 'id and the field 'name' while they differ in other key value pairs (that are not important for me). The first adapts dasmy's rejectattr-from-list-of-tuples approach to use the dict global function rather than the list filter. Calculate difference in keys contained in two Python dictionaries. Apply map filter to value of dictionary with ansible/jinja2 I have a dictionary like so: {'a': [Object, 0], 'b': [Object, 1] } Where object is an actual object with multiple attributes. Here’s an example: In this example, if the key “name” exists in the dictionary my_dict, the first paragraph will be The last data structure available in our implementation of Jinja is a dictionary. Use a forloop to iterate over the list. I am thinking the call would look something like: template = jinja_environment. html', file_dict=file_dict) Use Jinja's map to extract specific values from a list of dictionaries. How I have a dictionary which is loaded by the following play: - name: Get variables from . A State Object has a state value, constrained to storing a string limited to 255 characters, and an attributes value which is a dictionary, able to store key-value pairs of any type. Data: parent_dict = {1: {'A':'val1','B':'val2'}, 2:{'C':'val3','D To answer your question, unfortunately, there is no such option as Sort_Keys=False. Ansible list of dicts - accessing keys after a list filter. Commented May 20, 2018 at 16:11. list to dictionary python using for loop I'm using Ansible to deploy some virtual machines and I have a list variable defining the VMs. update() as follows:. How to loop through dictionary in jinja template . My goal was to answer with a solution not needing a single task/loop to calculate the result and to use some json_query magic in the middle. I think |dictsort may not be able to help you in this case because you cannot sort by either key or value, but by the value's (sub-dict's) value for 'totalpts'. I need to create a list of dictionaries using only Jinja2 from another list, as input. However, we recommend you use the Fully Qualified Collection Name (FQCN) ansible. Dictionary with multiple values per key via for loop. About; Products OverflowAI; Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about Note that you don't need to loop over the keys() result; you can loop directly over the dictionary: {% for key in table %} {% for a_value in table[key] %} {{ a_value }} {% endfor %} {% endfor %} If you are not using the key in the loop, just loop directly over the values: {% for list_value in table. Join a list of key-value pairs in Ansible template . Get nested dict items using Jinja2 in Flask. Ultimately I'll end up with 10 cards. homebrew: name: "{{ package }}" state: present register: package_install How to get values from dictionary in jinja when key is a variable? 1. Here's my HTML and my latest Jan 31, 2020 · As a sidenote to @Navaneethan ‘s answer, Jinja2 is able to do “regular” item selections for the list and the dictionary, given we know the key of the dictionary, or the Oct 25, 2024 · Use Jinja's map to extract specific values from a list of dictionaries. jinja2 Ansible filter dictionary. dev. Ask Question Asked 2 years, 1 month ago. You need to use the name of the key. I want to join all the dictionaries values, which are strings, into one string I'm not quite sure of the syntax in Jinja2 for this. How to get value from key when sending a dictionary to jinja. builtin. for every_archive in data I want to acces every_archive['key1']['key2'] First key it's a constant: "units" but the second key depends on a loop. If you would add something to the list corresponding to the first key, then it would also be added to the lists belonging to the other keys; because they all Generally, This is the way to access the nested dictionary items in dictionary. You can verify this by simplifying your template: Jinja supports dictionary access syntax, you can use {{data['CidrBlock']}} and {{data['Name']}} to access specific values in your dictionary. I can loop through the list and get the "ip" attribute I want but its a large list and wanted to kno Skip to main content. Hot How can I access each key's value (the list)? And show the list items? I want to display a table like this using Jinja. return render_template('file. ansible - join pairs of attributes from list of dictionaries. Modified 2 years, 1 month ago. 4. It’s just a matter of choosing something that allows you to easily Let's compare your Python loop to your Jinja loop. About; Products OverflowAI; Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company I'm trying to create a list of dictionaries, from a list of dictionaries which contains a key with a dictionary as a value. Iterating through list of multiple dictionary to show key only once and value in columns. Cast it back to a list and take the first element of it, an you should be good to go. I'm wondering if I can have one of the dict items use another as a variable within the same list eleme Skip to main content. Enumerate a list in jinja that satisfies a certain condition - with commas in between each My friend and peer Roberto Nozaki recently wrote How to work with lists and dictionaries in Ansible. Python list of dict to html There are specific jinja2 filters for that: selectattr and rejectattr. In the front end I want to iterate through each dictionary in the list ‘individually’. Jinja2 is a templating engine for Python that allows you to generate dynamic web content. html) outputblob = template. get_template(fileName. stamaimer stamaimer. The examples out there all seem to operate on lists of dictionaries, not dictionaries of same The best way to check if a key exists in a dictionary (in any Jinja2 context, not just with Ansible) is to use the in operator, e. Below is the code snippet (flask + jinja2) for that: Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Visit the blog a dictionary is a key, value collection. This is looping over a list of dictionaries, not over the keys of a dictionary as the question asked. Basic Usage {% set my_dict = {'key1': 'value1', 'key2': 42, 'key3': ['a', 'list']} %} This creates a dictionary named my_dict with three key-value pairs: Jun 6, 2024 · Iterating through a list of dictionaries in a Jinja template allows us to dynamically display data in a structured manner. update({'location': node. What does groupby() do? Groups data This function is used to group a sequence of items (like a list or dictionary) based on a specific criterion. loop: "{{ deploy_env. How to sort a list of dictionaries alphabetically in Jinja2. import jinja2 import itertools from operator import itemgetter def custom_jinja_groupby(Dict, Key_list, Val_list, group_filter, parse_filter): temp_array = [] for key, value in itertools. : Using jinja if clause in ansible templated yaml (through template lookup ) 1. If the iterables are getting nested further just you have to increase the forloop depth level whether it is list or dict. Python: Merge two dictionaries. Original my_list: [{'fruit': 'apple', 'veggy': 'pepper'}, {'veggy': 'tomato', 'fruit': 'orange'}] Unsorted: key = fruit value = apple iterating through python dictionary with multiple values for each key in jinja. Ask Question Asked 5 years, 1 month ago. list3: "{{ list1|lists_mergeby(list2, 'a') }}" If you're not able to install the collection create a custom filter on your own. Parsing output in ansible using jinja2 template (mapping list of strings to list of strings) 1. If any of the items contains a space, the output will be broken, and if one of them is " ><script>alert('pwned');</script> "then you'll be XSSed. jinja2 can not parse json, no. here is my list : [{'product': 'EC2', 'cost': 3. Use Dict in Vars with Templates in Ansible. the keys are not sorted alphabetically (veggy precedes fruit in the second dictionary). What attributes a variable has depends heavily on the application providing that variable. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online Ansible Jinja template combined list into dict. I am doing the following: @{@ for row in data. Here are some example usage: Jinja - Loop over a dictionary by Jeremy Canfield | Updated: the keys are not sorted alphabetically (veggy precedes fruit in the second dictionary). Loop over dictionary of dictionaries containing a list with ansible and jinja2. Is it possible to sort a list by length in Jinja2? 1. Related. About; Products OverflowAI; Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about Ended up making my own groupby() custom function and passing it into inja2. Python Jinja - Sort a Dictionary by Jeremy Canfield | Updated: August 25 2024 | Jinja articles. I'm using the selectattr filter, but it returns a I want to display the items that are True, along with the count of those items. The python would be: The python would be: Table = [] for key, value in results_dict. Checking for Key Existence in Jinja2 Templates. ) to access I am trying to create a python dictionary which is to be used as a java script var inside a html file for visualization purposes. 12 As a sidenote to @Navaneethan ‘s answer, Jinja2 is able to do “regular” item selections for the list and the dictionary, given we know the key of the dictionary, or the locations of items in the list. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Visit the blog Technically, because context is not passed as a named dictionary, a little work is required to generate a list of the context variables from inside a template. To represent complex data structures like dicts and lists the standard To alphabetically sort dictionary/hash/object by their keys, pass in the . Starting from: In my above comment, I was sure that a simple refactoring of your initial test1 dict to be consistent using list everywhere would made this very easy. Add key-value pair to a Jinja has (at least?) two different ways of sorting the dictionaries. 2. How to delete items from a dictionary while Jinja Errors and Troubleshooting: When iterating over Dictionaries . If you want outputs the way you expect in your template, you need to iterate over a list of dictionaries, where each element of the list is a dictionary containing the quiz_id, quiz_title, and quiz_score keys. Perfect for pulling out IPs, interfaces, or other attributes within your Jinja templates or Ansible playbooks. About; Products OverflowAI; Stack Overflow for Teams Where developers & technologists share private knowledge with That means that your nested loop was then attempting to loop over the values within the key of the dictionary rather than the value of the key of the dictionary. I'm struggling to come up with a way to apply a function to the 'value' of the dictionary (or the second value of the nested list, prior to converting it to a dict) - I'd like to apply human_readable(unit='G') or similar, without resorting to set_fact or FilterPlugins. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for Short answer: No, you cannot query the dictionary without knowing the exact key (and keep the O(1) query capabilities. globals. 1. Hot Network Questions Aftermarket Rear View Mirror Use a list when you want to loop through something Use a dictionary when you want to reference something by name There are two filters that can convert between the two, namely dict2items and items2dict. Note that prior to v2. general. But I can’t define a static dict, I want to add entries based on conditions. The dictionary keys weren't affected. Ansible & Jinja2: Note. All entities store their information, in the state machine, as a State Object. 168. join list of dictionaries. In most cases, you can use the short plugin name dict. (Not only is the second approach already more verbose, but it may I want to iterate through a list of dictionaries using jinja. For example, the below iteration gives the same result. Follow asked May 5, 2015 at 15:02. How to Merge two dictionaries in python. for eg. This example has val1 and val2: with the content — 1. I don't want to use a for loop because that will go through the dictionary way more than is I need to convert the following yaml dictionary into comma-separated list of key=value pairs. Hot Network Questions Front derailleur clamp screw sheared - removal What to do when one gets a decimal value as degrees of freedom? What does the é in Sméagol do to the Using Jinja2 how can I lookup the value in a dictionary where the key is a variable from a Jinja2 for loop. Option1 Uses same space, but takes leniar time, and treats your dictionary as a list. Hot Network Questions Help me identify this chip (8 pins) Does Windows 11 Pin Behavior Break Password Security Conventions? If the president pardons you for illegally entering the country, can you begin immigration paperwork immediately? I'm just not sure how to iterate a dictionary with Jinja to only return the keys, and to only return the values, into a JavaScript list. In this Update, from Stackoverflow on removing the parentheses: I'm trying to represent a list as a string, so in my code I need to create a string from the list, rather than changing the way the list is displayed in the jinja template. In this example, the output will be “The key ‘name’ exists in the dictionary” since the key “name” is present in the dictionary. This lookup plugin is part of ansible-core and included in all Ansible installations. So my problem is I need to double-substitute this variable. g. Any ideas on how should I do this? Any ideas on how should I do this? This would be any dict key that has a list for their value. This is closer to the actual use I have for the removal: The way you're doing this will not work, because as soon as you use {% for team in league %}, you're already using the unsorted dict and extracting the key,value pair from it. But those work on a list of dicts, not on a dict itself. Stack Overflow. Sure, it should somehow be possible without dicts, but this seemed to me most elegant. nested dictionary variable is not evaluated correctly with jinja2 template in Ansible. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company How do I return dictionary keys as a list in Python? 528. I want to filter out all those dictionaries that are "duplicates" regarding the 'name' and 'id' fields. jinja2 turning lists into strings even when from_json is being used . Flask Jinja2 template dictionary in a What is the proper way to remove keys from a dictionary with value == None in Python? Skip to main content. Building a dynamic table with jinja2, html and flask . To iterate through the list of dictionaries in a Jinja template, we can use a for loop combined with the dot If this is the case, what you want is to print each list item row by row and to print each dictionary item's value one by one separated by , except last value. e {'d':775,'a':0}, so 1st we have identified the dicts The problem is you are using {% for occurrence in occurrences %}, but you have not set occurrences anywhere. Map function over values of dict in ansible jinja template. 3. In Ansible, how to apply a scalar filter to a list . Issue creating a list of dictionaries in ansible using Jinja2. Right now im using this: Render dictionary's key-value pairs using Jinja in html. Ansibe Note. harry, male, 1994 harry, male, 1994 What am i doing wrong here? If blogposts is a list of dictionaries, then you cannot access them by number. Example below: - { device: 'spine1', interface: Nov 25, 2022 · The registered var package_install. location}) %} However, for the do tag to work properly you need to add A simple way to iterate through a dict, is using the items() method. an example of the dict is below. 8. /main. This will return a Key, Value pair which you can then use in your Jinja: In your view, just pass the whole dict to render_template:. How do I filter a list by existance of an attribute in ansible/jinja2? 3. Then you can use map with the first filter to map the list of lists to a list, and map with attribute='key' to get hold of the keys. So ideally I'd have an output variable of the form: Note: The method key() is redundant in the above expression. qhje ipaioo tdnxmlk nmddxvsy losmb kvqb ycmb beeu pqspaxk kcw