{%-else-%} False {%- endif %} {%- endmacro -%} My one element list hasboolvalue of: {{ bool_eval(my_list) }} My one key dict hasboolvalue of: {{ bool_eval(my_dict) }} Myshortstringhasboolvalue of: {{ bool_eval(my_string) }} My empty list hasboolvalue of: {{ bool_...
A control structure refers to all those things that control the flow of a program - conditionals (i.e. if/elif/else), for-loops, as well as things like macros and blocks. With the default syntax, control structures appear inside blocks. List of Control Structures For Loop over each item ...
classEnvironment(block_start_string='{%',block_end_string='%}',variable_start_string='{{',vari-able_end_string='}}',comment_start_string='{#',comment_end_string='#}',line_statement_preix=None,trim_blocks=False,extensions=(),optimized=True,undefined=<class'Jinja2.runtime.Undefined'>,...
string_or_expr1 ifCONDITIONelsestring_or_expr2 因为行内if是表达式而不是语句块,所以不使用{% raw %} {%%} {% endraw %}符号,而使用{% raw %} {{}} {% endraw %}。 例如: 1 2-debug:msg:"{{'周末' if whatday|int > 5 else '工作日'}}" 9.5 for循环 9.5.1 for迭代列表 for循环的...
{% else %} Kenny looks okay --- so far {% endif %} 复制进入实验环境展开代码 If 也可以被用作 内联表达式 并作为 循环过滤。 宏¶ 宏类似常规编程语言中的函数。它们用于把常用行为作为可重用的函数,取代手动重复的工作。 这里是一个宏渲染表单元素的小例子: {% macro input(name, value='', ...
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pipeline_vars (dict): key/value pairs of variables the pipline expects Returns: str: pipeline json after Jinja is rendered"""try:ifTEMPLATES_PATH: loader = jinja2.FileSystemLoader(TEMPLATES_PATH)else: loader = jinja2.BaseLoader() jinja_template = jinja2.Environment(loader=loader).from_string(...
'if' statement (with 'elif' and 'else' branches) 'for' statement (with 'else' branch and 'if' part support) 'include' statement 'import'/'from' statements 'set' statement (both line and block) 'filter' statement 'extends'/'block' statements ...
If this is set to True leading spaces and tabs are stripped from the start of a line to a block. Defaults to False. newline_sequence The sequence that starts a newline. Must be one of '\r', '\n' or '\r\n'. The default is '\n' which is a useful default for Linux and OS...
Must be one of '\r', '\n' or '\r\n'. The default is '\n' which is a useful default for Linux and OS X systems as well as web applications. keep_trailing_newline Preserve the trailing newline when rendering templates. The default is False, which causes a single newline, if ...