jinja2-strcase is a Python package that provides a set of filters for converting string cases within Jinja2 templates, including common formats like snake_case, kebab-case, and camelCase. It is currently at version 0.0.2 and is a port of the Go `strcase` package. The package has an 'Alpha' development status, indicating it is not yet stable for production use.
pip install jinja2-strcaseVerified import paths — ran on the pinned version, not inferred.
This quickstart demonstrates how to initialize a Jinja2 environment with the `StrcaseExtension` and then use various case conversion filters (e.g., `to_snake`, `to_screaming_snake`, `to_camel`) on strings within a template.
Review the project's GitHub repository for any changes before upgrading and test thoroughly.
Ensure `extensions=['jinja2_strcase.StrcaseExtension']` is passed to the `jinja2.Environment` constructor.
Always check if a variable is defined or iterable using `{% if variable is defined %}` or `{% if variable is iterable %}` before operating on it. Use default values where appropriate, e.g., `{{ variable | default('fallback_value') }}`.Use Jinja2 filters like `|int` or `|float` to convert variables to the desired numeric type before comparison, e.g., `{% if '3'|int > 0 %}`.Initialize your Jinja2 Environment by explicitly passing `extensions=['jinja2_strcase.StrcaseExtension']` to its constructor.
```python
from jinja2 import Environment
from jinja2_strcase import StrcaseExtension
env = Environment(extensions=[StrcaseExtension])
template = env.from_string("{{ 'HelloWorld' | to_snake }}")
print(template.render())
```Install the package using pip in your active Python environment: ```bash pip install jinja2-strcase ```
Ensure the variable is defined and is a string before applying the filter, using Jinja2's `default` filter or conditional statements.
```jinja2
{{ my_variable | default('') | to_snake }}
{# or #}
{% if my_variable is defined %}
{{ my_variable | to_snake }}
{% else %}
{# Handle undefined case, e.g., print an empty string or a default value #}
''
{% endif %}
```