Python syntax regex

Question

I want to write a python code generator, and it would be useful if I had a regular expression that describes all valid python programs.

Is there such a regular expression? What is it?

Answer 1

Such a regular expression cannot exist, because regular expressions are, by definition, not powerful enough to recognize full Turing languages ​​(e.g. python).

Answer 2

If you are creating a line with a snippet of Python code and want to check if it is syntactically correct, try the built-in compile function. It returns a resulting code object or throws a SyntaxError exception.

Answer 3

You want to lint your code. There are several tools for this with Python; pylint , PyChecker and pyflakes should all do the trick.

To answer your real question: no, this is not a task for regular expressions.