anedroid
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build.py
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Share local namespace of the content file

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faildev_mode 2023-06-13 17:01:58 +02:00
parent 934f96e77f
commit 365e658a1d
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1 changed files with 5 additions and 4 deletions
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_src/build.py
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@ -46,15 +46,17 @@ def namespace_from(extension: type) -> dict:
namespace[i] = extension[i]
return namespace
def evaluate_this(content: str, global_ns: dict) -> str:
def evaluate_this(content: str, global_ns: dict, local_ns: dict = {}) -> str:
"""Finds some inline Python code in {braces} and evaluates it in-place.
global_ns is a dictionary of globals that it can use. It's recommended to use
namespace_from() to generate one.
"""
return re.sub(r'\{([^\s}]+([^}]*[^\s}])?)\}', partial(evaluate, global_ns=global_ns), content)
return re.sub(r'\{([^\s}]+([^}]*[^\s}])?)\}',
partial(evaluate, global_ns=global_ns, local_ns=local_ns),
content)
def evaluate(match: re.Match, global_ns: dict) -> str:
def evaluate(match: re.Match, global_ns: dict, local_ns: dict) -> str:
"""Callable for re.sub, returns value of the last Python expression line,
executing all the other lines before.
"""
@ -64,7 +66,6 @@ def evaluate(match: re.Match, global_ns: dict) -> str:
apis.environment = global_ns
# we can't use 'return' in expressions
# instead the last line will be evaluated and returned, the rest – executed
local_ns = {}
to_exec = '\n'.join(match[:-1])
to_eval = match[-1]
try: