59 lines
1.6 KiB
Python
59 lines
1.6 KiB
Python
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r"""
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Parso is a Python parser that supports error recovery and round-trip parsing
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for different Python versions (in multiple Python versions). Parso is also able
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to list multiple syntax errors in your python file.
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Parso has been battle-tested by jedi_. It was pulled out of jedi to be useful
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for other projects as well.
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Parso consists of a small API to parse Python and analyse the syntax tree.
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.. _jedi: https://github.com/davidhalter/jedi
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A simple example:
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>>> import parso
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>>> module = parso.parse('hello + 1', version="3.9")
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>>> expr = module.children[0]
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>>> expr
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PythonNode(arith_expr, [<Name: hello@1,0>, <Operator: +>, <Number: 1>])
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>>> print(expr.get_code())
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hello + 1
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>>> name = expr.children[0]
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>>> name
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<Name: hello@1,0>
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>>> name.end_pos
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(1, 5)
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>>> expr.end_pos
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(1, 9)
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To list multiple issues:
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>>> grammar = parso.load_grammar()
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>>> module = grammar.parse('foo +\nbar\ncontinue')
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>>> error1, error2 = grammar.iter_errors(module)
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>>> error1.message
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'SyntaxError: invalid syntax'
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>>> error2.message
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"SyntaxError: 'continue' not properly in loop"
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"""
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from parso.parser import ParserSyntaxError
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from parso.grammar import Grammar, load_grammar
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from parso.utils import split_lines, python_bytes_to_unicode
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__version__ = '0.8.4'
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def parse(code=None, **kwargs):
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"""
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A utility function to avoid loading grammars.
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Params are documented in :py:meth:`parso.Grammar.parse`.
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:param str version: The version used by :py:func:`parso.load_grammar`.
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"""
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version = kwargs.pop('version', None)
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grammar = load_grammar(version=version)
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return grammar.parse(code, **kwargs)
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