Jinja Set Variable

Undefined class outputs a blank space in the position of the variable for rendering (e. Customizing CKAN's templates — CKAN 2. This educational video was created for use in LaunchCode's in-person training programs. Django uses this language as the default translation – the final attempt if no better matching translation is found through one of the methods employed by the locale middleware (see below). Leveraging Jinja in Full. In this example, we will build a new BGP neighbor with a new peer. Assembling documents #298891. though you will have to sanitize the variable of. Ask Question Asked 5 years, 7 months ago. I want to change the value of the variable declared outside the loop within a loop. sls files with the syntax highlighter:. the view must return a Python dict which will be passed into the template as the set of available variables. Rugunda reassured Speaker of Parliament Rebecca Kadaga who raised the issue of the Jinja-Kampala highway as she chaired a Busoga Forum meeting with Premier and his officials. Output Twig v1. port – the port of the webserver. Environment(). find_undeclared_variables taken from open source projects. Joins and custom filters: in the previous example, I used a for loop to generate the set of columns to use in the select and group by clause. Ansible is a universal language, unraveling the mystery of how work gets done. python - values - jinja2 set variable in loop 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. Role is a structured way to manage your set of tasks, variables, handlers, default settings, and way more (meta, files, templates). ` For examples, see the Set Command. It is fast, widely used and secure with the optional sandboxed template execution environment:. The sensitive parts will be obscured by the Jinja2 templating. over 3 years Variables set with `{% set %}` not available in templates included within blocks over 3 years finalize function does not play well as environment function over 3 years Block assignment scope is different than inline assignment. Nevertheless, we can see our session variables are successfully decoupled. Business Impact Through Scientific Innovation. Jinja2 Template Introduction¶. We then set up a base Config() class with some basic setup that our other config classes inherit from. Defaults to '127. append() but it is not available on the Jinja version used in your tool, but the above works. This means that variables should be clearly defined and easy to manipulate, and that sane defaults should exist in the event a variable is not properly defined. It's typically presented using an italicized version of the current typeface, although that behavior is browser-dependent. You can mess around with the variables in templates provided they are passed in by the application. About Miguel. A template contains variables which are replaced by the values which are passed in when the template is rendered. 2 Evaluating Variables1. My experience of writing a Jinja extension. One of the arrays or keys in the dictionary is 'abcd' This {{ item. Jinja formatter. Jinja templates scope variables to the block where they're set -- essentially, each time through the loop, you have a completely new currentClass and currentVotes variables. In addition to those, Ansible supplies many more. Read about the differences here. In this article, i’ll show how to test if a variable exists or not, if it is empty or not and if it is set to True. One can put conditions around the value of the variables and accordingly use them in the playbook. 0' to have the server available externally as well. Reference: Stack Overflow With the pipe character you pass a value to a filter. That means the lookup value could be different in different tasks. Undefined class to. In jinja this can be done after you've created your environment;:: env = Environment(extensions=['jinja2_highlight. It cannot be done through vars, but it can be done through set_fact as below how to use included variable from file with jinja2 template and with_items. You can use the aforementioned JSONView Google Chrome extension to look at your own JSON and access any of those variables. url_param (param, default=None) [source] ¶ Read a url or post parameter and use it in your SQL Lab query. 0 1 Output Liquid (error) v3. Jinja has a built in default filter that can be used to set a default value when one isn’t provided. An important note on scoping here. Nevertheless, we can see our session variables are successfully decoupled. One of the arrays or keys in the dictionary is 'abcd' This {{ item. 4 - {% set %} and {% include %} don't work in the same template. Ask Question and set its environment for it at invocation. In this tutorial, we're going to cover passing variables from Python to our HTML templates. This is set to False by default in Salt. use a variable inside json_query in ansible/jinja. Jinja templates in Ansible can be very powerful. The variables defined on the command line with --vars. Then I have a jinja2 template that puts out a different file depending on the data center. It was never. jinja2末尾の改行を削除する方法. Using Jinja powers, this would subsequently enable conditional and/or repeated inclusion of block content. User-Defined Templates Warning. For example:. Using Jinja allows you to turn your dbt project into a programming environment for SQL, giving you the ability to do things that aren't normally possible in SQL. Jinja2 includes many built-in filters and Ansible supplies many. You need to replace that value with your own API key to be able to run the samples. Jinja can generate any text-based format (HTML, XML, CSV, LaTeX, etc. Here is another example. Watch it together with the written tutorial to deepen your understanding: Basic Data Types in Python Now you know how to interact with the Python interpreter and execute Python code. During the build process, the following environment variables are set, on Windows with bld. Older versions of Jinja2 had a bug where in some circumstances it appeared that assignments would work. I would like to know how can I set a variable with another variable in jinja. Looping through dictionaries in jinja2 templates. Variable in playbooks are very similar to using variables in any programming language. Jinja2 in django settings. port }} works fine, but key 'abcd' varies in each dictionary. today I’d like to show how to render an HTML (or any random non-binary) File with Jinja2 and Python 3. One of the most common uses of Jinja is to insert conditional statements into Salt pillar files. Jinja formatter. Set variable in jinja (2) This question already has an answer here: Reference template variable within Jinja expression 1 answer I would like to know how can I set a variable with another variable in jinja. Loren Gordon Yes, there's a locality of reference issue with jinja and for loops. x > System Administration Tools > Ansible > Ansible tips and tricks > Convert list variable to comma separated list in ansible Convert list variable to comma separated list in ansible. Django and Jinja overlap in a little subset of template filters. 2 Evaluating Variables1. Jinja Documentation (2. This is helpful in many situations where you have stored the output of an operation, and you need to manipulate that value. For Jinja usage information see Understanding Jinja. add_jinja2_search_path() directive is added to the Configurator instance. This educational video was created for use in LaunchCode's in-person training programs. The environment variables of the remote servers can be accessed via 'facts'. 29%) sre_compile. They are mostly used when dealing with a conditional statement where you can opt to run the task based on the output of another task. According to Jinja2 documentation you can manage whitespace and tabular indentation with lstrip_blocks and trim_blocks options: trim_blocks: If this is set to True the first newline after a block is removed (block, not variable tag!). # # @since 2018-10-23 # @author Ashley Engelund ashley. Example #1 Reference: Jinja Syntax: [crayon-5e26d4f9ef0c4014918806-i/] If the value is undefined it will return the passed default value, otherwise the value of the variable: [crayon-5e26d4f9ef0d6978548858/] This will output the value of [crayon-5e26d4f9ef0dc674710277-i/] if the variable was defined, otherwise 'my_variable is not defined'. Why? In some ways it comes down to documentation, a mixing of languages (YAML, Python, Jinja2), and variables. List of additional directories to pass to jinja loader. An important note on scoping here. today I'd like to show how to render an HTML (or any random non-binary) File with Jinja2 and Python 3. Understand how to create a basic configuration. I'm trying to set one specific lamp to a specific color as an sort of notification. Django and Jinja overlap in a little subset of template filters. Redis('__ip_address_redis_server__') cache_time = 10. append() but it is not available on the Jinja version used in your tool, but the above works. We can pass any Python object to a template by passing it to the render_template function as a key/value pair. i18n extension and overrides the globals variables _ and gettext in order to use custom functions to resolve translations. This is the documentation for the Jinja2 general purpose templating language. lstrip_blocks: If this is set to True leading spaces and tabs are stripped from the start of a line to a block. The New Flask Mega-Tutorial. jinja_context. A variable name to debug. # - passing a value into a template (use a dictionary with each entry = "variable_name": variable_value # - slice() jinja filter (can be used to split a list into columns # # You can also just run this. Business Impact Through Scientific Innovation. Variables Variables, using variables with Jinja2, registered variables accessing complex variable data, passing variables on the command line, variable precedence, scopes. 5 時点では以下の挙動のようです。. 8 and above. Cool Tip: Test if the variable in Jinja2 is Empty. Bash Operator - Jinja templating and the bash commands. On top of that it adds sandboxed execution and optional automatic escaping for applications where security is important. This post explains the ansible variable is defined or undefined usage and examples with explanation. In addition to those, Ansible supplies many more. Skip to content. The cumulative published variables are also available in the result of an ActionChain execution under the published property if the display. In this tutorial, you'll become an Alexa Python developer by deploying your own Alexa skill. default ( value, default_value=u’’, boolean=False ) If the value isn’t defined, default will display what’s in the default_value field. Variables are necessary when you need to store the output of a task and need to access it in some other tasks. Ansible Container reads the contents of the variable file, devel. If you want a little more context before diving in, check out this article by Ryan Reid that provides a bit more context to what SSTI looks like in Flask/Jinja2 applications. You can use arithmetic calculations in Ansible using the Jinja syntax. In this tutorial, we are going to learn how to integrate Hashicorp Vault into our Ansible templates for better, more secure secrets management. Because at compile time it's not known which variables will be used depending on the path the execution takes at runtime, all variables are returned. In Jinja2 templates, it is often a good practice to test if a variable exists and what value does it carry. Jinja Template. Using filters resembles using Unix pipes, where a variable is piped through a filter. Environment variables specified in _APP_CONFIG_ENVS configuration variable or comma separated list in environment variable with the same name. HighlightExtension']). default ( value, default_value=u'', boolean=False ) If the value isn't defined, default will display what's in the default_value field. This means you get access to three Django context processor 'like variables in all Jinja templates used in Django projects. These options dictionary is passed to the template. I’ve been working on a couple of Flask projects, and I’m finding that working with Jinja in VS Code is kind of a pain. html in the templates folder. Support nested variables #623. find jinja variables. Way back in 2011, Jinja's author stated: I will keep it. It takes a scalar, array or hash left-value as first argument, and a list of one or more values depending on the type of the first argument as the value for the variable. Filters are connected to variables via pipes, |, and the result is the modified variable. The other nice feature of Jinja is that it includes multiple builtin filters which will allow us to format some of our data in a way that is difficult to do within Pandas. jinja에서 직접 변수를 선언해봅시다. A concept called role was introduced for parts of the code (playbooks) that should be reusable. At the heart of any template is the concept of a “variable”. This limitation often requires one to make creative use of filters, built-in or custom (min, max, trim, flatten). Nevertheless, we can see our session variables are successfully decoupled. 0 that made it so that /etc/hostname would be used to guess minion ID instead of socket. For example, the header and footer sections on all templates rarely changes, whether a project has five or one hundred templates. * Update docs/submodules/pharos from branch 'master' - [daisy] network template: Fix set inside loop Previous implementation fails in older versions of py-jinja2. python - update - jinja2 set variable in loop How to increment a variable on a for loop in jinja template? (4). SLS Template Variable Reference Using the pillar. Ajax AJP protocal Apache cross-site CSS CSS3 Encoding GWT Hibernate HTML iText Jasypt encryption java Javascript jinja2 jQuery mod_jk MS932 Pdf python Reverse Proxy SHIFT-JIS SJIS Software spring SSL Tomcat. Those are not affected by the variable lookup: _, true, false, none, undefined. The variable datacenter from inventory is the string that determines dcvar1 or dcvar2. When you see doc. 0 4 Output Swig (error) v1. Django needs to be configured to support Jinja2 templates. Embedding Jinja2 templates in YAML files is one of Ansible's distinguishing features. Configuration Process Overview, Specifying the Configuration Mode, Specifying the Load Operation, Specifying the Format of the Configuration Data to Load, Specifying the Location of the Configuration Data, Loading Configuration Data from a Local or Remote File, Loading Configuration Data from a String, Loading Configuration Data Formatted as an XML Object, Loading Configuration Data Using. It has no database abstraction layer, form validation, or any other components where pre-existing third-party libraries provide common functions. In this article, i'll show how to test if a variable exists or not, if it is empty or not and if it is set to True. Variables are helpful with the dynamic data. Modifying this variable won't make the environment sandboxed though. For example the ipaddr filter can be used to find IP addresses with certain properties in a list of given strings:. Ansible offers a set of inbuilt filters. rc file add the Jinja2 shebang line. These commands consist of a series of YAML sections, defining what extension to call, and any variables/parameters that need to be set. Set variable in jinja ; Jinja-Is there any built-in variable to get current HTML page name? How to output a comma delimited list in jinja python template? How to output loop. How can I consolidate a task like this one into a parametrized form while registering separate variables, one per item, for later use? So the goal is to have variables based on the group name which can then be used in later tasks. This means you get access to three Django context processor 'like variables in all Jinja templates used in Django projects. I want to set a jinja2 variable based on the hostname of a server (I'm using different certs and want to have ansible create the ssl. The first recorded public released of Jinja2 was in 2008 with 2. My Kickstarter project was a big success! Thank you to everyone who contributed to it! If you would you like to support my work on this tutorial and on this blog and as a reward have access to the complete tutorial nicely structured as an ebook and a set of videos, you can now order it from my Courses site. Jinja2 Environment. the lowercase false is part of jinja's convention: " The special constants true, false, and none are indeed lowercase. UC-232AC 96000 -L Takraw http://www. There is a workaround for this using. Enthought collaborates with clients in their digital transformation initiatives to create possibilities that deliver orders of magnitude changes in expert efficiency and business impact. To prevent that, the comma is conditionally added for all but the last element by checking for the special loop. To alter Jinja's default spacing behavior, you can use two Jinja environment parameters : trim_blocks and lstrip_blocks, both of which default to False. Scoping in Jinja works differently than in Python; control structures (such as if and for) have a different scope than their surrounding code (where the initial set was done). This is set to False by default in Salt. Files with the. Juniper Network Automation using Python–Part 1 November 25, 2017 3 Comments In This multi-posts series, We will deep dive into Juniper network automation and how to automate both configuration and operation for Juniper Nodes. It can be set in both GitLab Variables section of a project and in the config. I am trying to iterate over a dictionary in a Jinja2 template (in Ansible). Output Jinja2 v2. Learning Jinja2 Installing and UsingVariable InterpolationIncluding FilesTemplate Inheritance and BlocksControl Blocks Jinja2 is a template engine for Python featuring an optional sandbox environment. In order to assess SSTI in the Flask/Jinja2 stack, let’s build a small proof-of-concept application that contains the following view. This is a snippet from my Ansible jinja template which populates an environment specific template. When a template accesses a variable the template does not define, Jinja2 looks up the variable in the context, after that the variable is treated as if it was defined in the template. jinja: {% set N = 12 %} I'd expect that A. Set cacheable to yes to save variables across executions using a fact cache. So if you need to add global constants it will be better to use jinja2. shared = False¶ shared environments have this set to True. When using jinja2 for SaltStack formulas you may be surprised to find that your global scoped variables do not have ability to be modified inside a loop. Older versions of Jinja2 had a bug where in some circumstances it appeared that assignments would work. Templates are processed by the Jinja2 templating language and a file created out to a remote server. In particular one variable could refer to another defined in the same with block's opening statement. YAML accepts the entire Unicode character set, except for some control characters, and may be encoded in UTF-8, UTF-16 and UTF-32. Understand how to create a basic configuration. Jinja Template. find_undeclared_variables (ast) ¶ Returns a set of all variables in the AST that will be looked up from the context at runtime. This flag alone controls the code generation by the compiler. update` on its own is enough, stop assigning its result back to 'networks'. difference between a random number and a set of random. I simple wanted to use variable vhost in my template. Ansible Container reads the contents of the variable file, devel. For example, the capitalize filter capitalizes any value passed to it; the to_yaml and to_json filters change the format of your variable values. I am trying to set a variable in jinja when a task in task scheduler is found on the Windows Minion. Unable to assign the output from cmd. See builtin filters in the official Jinja2 template documentation. Before the build command can be executed, Jinja is called to perform template rendering. I've been trying to do the below in order to set the DEFAULT_JINJA2_EXTENSIONS variable, so I don't have to edit my ansible. Jinja formatter. Sign in Sign up Instantly share code, notes, and snippets. 0 that made it so that /etc/hostname would be used to guess minion ID instead of socket. These settings achieve backwards compatibility while still providing access to C++14 and C++17. Jinja2テンプレートにHTMLファイルを含めるにはどうすればよいですか? ファイルシステムから直接jinjaテンプレートをロードする方法. Ansible variables help to determine how the tasks execute on different systems based on the values assigned to these variables. But the main issue is that, you should actually have business logic inside your views and presentation in your templates. For example, the definition of a client switchport starts with the header-line interface GigabitEthernet1/0/2 and all configuration lines for this interface are indented by one blank. Joins and custom filters: in the previous example, I used a for loop to generate the set of columns to use in the select and group by clause. Instead, just assign the value the same way you would in normal python code {% set testing = 'it worked' %} {% set another = testing %} {{ another }} Result: it worked. List of additional directories to pass to jinja loader. Jinja can generate any text-based format (HTML, XML, CSV, LaTeX, etc. loopcontrols extension to work, and the documentation from ansible is not great. This feature enables the creation of generic roles and playbooks that work without modification for multiple environments, or even multiple projects by simply overriding variables in the group_vars/ directory, the playbook, or even the command line. My Kickstarter project was a big success! Thank you to everyone who contributed to it! If you would you like to support my work on this tutorial and on this blog and as a reward have access to the complete tutorial nicely structured as an ebook and a set of videos, you can now order it from my Courses site. The only difference is Jinja tests are used to evaluate conditions and Jinja filters are used to format or transform values. Using a variable set by the template, the for loop will iterate over the list of MOTD files to update, adding a state block for each file. inventory_hostname is the name of the current host as you've configured it in your Ansible inventory file, regardless of the system's actual hostname. The Corp draws all three cards, then Jinja City Grid meets its trigger condition simultaneously for each drawn piece of ice. Advancing in Ansible: ternary (Jinja2 filter) "private", so if an instance needs to be deployed in a public subnet in my AWS VPC, I just set the type to public in a variable loaded through vars_files; then the subnet id itself is gathered later on. The suite was comfortable and large, and the staff was SO helpful getting us set up for our conference. If you want to use default with variables that. Ansible works based on your inventory and it will execute the tasks in multiple systems in your infrastructure at the same time. Mutually exclusive with the msg option. lstrip_blocks: When set to True, Jinja strips tabs and spaces from the beginning of a line to the start of a block. Create your free Platform account to download ActivePython or customize Python with the packages you require and get automatic updates. If it is needed to add django-specific API we also need to: 1. Using variables is one thing, but they need to be defined first. Templates and Macros in Apache Airflow are useful to pass dynamic data to your DAGs at runtime. There are several useful tests that you can make using Jinja2 builtin tests and filers. In this example, we will build a new BGP neighbor with a new peer. Passing Variables ¶ It is also possible to pass additional variable context directly into a template, using the defaults and context mappings of the file. Ansible greatly expands the number of filters and tests available, as well as adding a new plugin type: lookups. 4 - {% set %} and {% include %} don't work in the same template. The most direct way to do this would be to just use a [code ][/code] tag inside of a template and pass a parameter via the [code ]render_template[/code]. Jinja2 engine certainly wasn't the first template engine. They can also be a leading contributor to hair loss. We've mentioned variables in this Ansible series and just to jog your mind a little. I am playing around with building my own back end with python 2. Get started with Installation and then get an overview with the Quickstart. Set variable in jinja? {{ }} tells the template to print the value, this won't work in expressions like you're trying to do. odoo v8 - Field(s) `arch` failed against a constraint: Invalid view definition. Output Twig v1. But the main issue is that, you should actually have business logic inside your views and presentation in your templates. This is different in Jinja. It will also set the variables tzname (from the TZ environment variable), timezone (non-DST seconds West of UTC), altzone (DST seconds west of UTC) and daylight (to 0 if this timezone does not have any daylight saving time rules, or to nonzero if there is a time, past, present or future when daylight saving time applies). 0 that made it so that /etc/hostname would be used to guess minion ID instead of socket. modèle de référence variable dans l'expression de Jinja 1 réponse je voudrais savoir comment définir une variable avec une autre variable dans jinja. One of the arrays or keys in the dictionary is 'abcd'. ` For examples, see the Set Command. Learning Jinja2 Installing and UsingVariable InterpolationIncluding FilesTemplate Inheritance and BlocksControl Blocks Jinja2 is a template engine for Python featuring an optional sandbox environment. Django needs to be configured to support Jinja2 templates. I want to change the value of the variable declared outside the loop within a loop. You can use Python and Jinja2 template base to generate configuration to create automatic configuration templates that can be just copied and pasted to your network device. 6 Liquid syntax error: Variable '{{ { a: 1, b: 2, c: 3, d: 4 }' was not properly terminated with regexp: /\}\}/ Output Nunjucks v2. properties: /etc/hosts We want to generate the following snip…. Read about the differences here. So if you need to add global constants it will be better to use jinja2. globals, but calculate variables each request. To set up Jinja globals you need to access Jinja's environment which is where globals are stored, in a variable properly called globals. ViSP is able to compute control laws that can be applied to robotic systems. Most of the developers in the Flask community use Jinja, and I recommend that you do the same. Like Cookie, Session data is stored on client. Naturalistic outcome of treatment of psychosis by traditional Jinja2 Templating - Hasini Witharana - Medium How to combine variables in SPSS Statistics - YouTube A Simple Approach To Templated SQL Queries In Python Only a few arguments in Rally sample task scenarios are set as Jinja variable. Ansible uses a combination of a hosts file and a group_vars directory to pull variables per host group and run Ansible plays/tasks against hosts. Using variables is one thing, but they need to be defined first. Assembling documents #298891. As for rationale, this would allow for rendering {% block %} content into a variable (presumably as jinja2. Otherwise, If no default is set, the variable is required. Currently, each project defines an API_KEY variable that is set to the value REPLACE_ME. find_undeclared_variables (ast) ¶ Returns a set of all variables in the AST that will be looked up from the context at runtime. A Jinja template doesn’t need to have a specific extension:. It provides a set of visual features that can be tracked using real time image processing or computer vision algorithms. Armin Ronacher, who leads an international group of Python enthusiasts named Pocco, develops it. Jinja has a built in default filter that can be used to set a default value when one isn't provided. Here, “set things up” could be opening a file, or acquiring some sort of external resource, and “tear things down” would then be closing the file, or releasing or removing the resource. Instead of depending on the user's browser or our app's local server, user session variables are nice and comfy in the cloud. zip(*args, **kwargs). For some reason, this view has disappeared completely. I have covered so far some use cases of variables, but not where to get them. Where do you set the value of the variable? PS What language are you using? wwb_99. This is known as variable replacement or variable expansion. js and Rhino) or client-side (modern browsers only). trim_blocks: If this is set to True the first newline after a block is removed (block, not variable tag!). “I have urged him to find funds for construction of the Kampala-Jinja highway. August 30, 2014, 11:09am #3. Unless otherwise noted, no variables are inherited from the shell environment in which you invoke conda-build. Ansible devs have disabled this feature because of. find jinja variables. Jinja2 engine certainly wasn't the first template engine. But let's get back to the. Jinja templates in Ansible can be very powerful. set things up try: do something finally: tear things down. In this tutorial, we are going to learn how to integrate Hashicorp Vault into our Ansible templates for better, more secure secrets management. I want to set a jinja2 variable based on the hostname of a server (I'm using different certs and want to have ansible create the ssl. AWK and Shell Functions. Because that caused confusion in the past, (True used to expand to an undefined variable that was considered false), all three can now also be written in title case (True, False, and None). To set environment variables, run conda env config vars set my_var=value. Ansible works based on your inventory and it will execute the tasks in multiple systems in your infrastructure at the same time. Closed ekultails opened this issue Dec 7, 2016 · 7 comments Jinja2 does not like that when it renders as it complains about the extra brackets existing. Nunjucks is essentially a port of jinja2, so you can read their docs if you find anything lacking here. “I have urged him to find funds for construction of the Kampala-Jinja highway. A cheat sheet and full specification are available at the official site. In this example, we first set up a jinja template by creating an object named jtemplate and assigning Jinja’s Template() function to it. To alter Jinja's default spacing behavior, you can use two Jinja environment parameters : trim_blocks and lstrip_blocks, both of which default to False. A wild Jinja has appeared, Jinja2 specifically. shared = False¶ shared environments have this set to True. Then, at the group level, we set the variable ‘http_server_port’ to 80. You're actually setting a new variable inside the for loop, not updating the variable set outside the for loop. jinja ¶ Map file helps to clean the differences among operating systems and provides default values so there's no need to provide default value in state files. I have format on save enabled, and formatting goes right down the toilet every time. find_undeclared_variables taken from open source projects. You also know the playbooks - the execution plans of multiple tasks (with variables and logic). find_undeclared_variables (ast) ¶ Returns a set of all variables in the AST that will be looked up from the context at runtime. Remember that earlier in the script we set the variable baseline to be the location of our template, so here we are rendering the actual Jinja2 template we created. Understand how to create a basic configuration. html in the templates folder. js and Rhino) or client-side (modern browsers only). This is a variable that we need reference later on so we know what our JDBC configuration is. From the Jinja docs: If you want to print a block multiple times, you can, however, use the special self variable and call the block with that name:. been created with the standard Jinja `set`.