49 lines
1.1 KiB
Python
49 lines
1.1 KiB
Python
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from __future__ import annotations
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import contextlib
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import inspect
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import os
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@contextlib.contextmanager
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def rewrite_exception(old_name: str, new_name: str):
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"""
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Rewrite the message of an exception.
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"""
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try:
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yield
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except Exception as err:
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if not err.args:
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raise
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msg = str(err.args[0])
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msg = msg.replace(old_name, new_name)
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args: tuple[str, ...] = (msg,)
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if len(err.args) > 1:
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args = args + err.args[1:]
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err.args = args
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raise
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def find_stack_level() -> int:
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"""
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Find the first place in the stack that is not inside pandas
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(tests notwithstanding).
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"""
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import pandas as pd
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pkg_dir = os.path.dirname(pd.__file__)
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test_dir = os.path.join(pkg_dir, "tests")
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# https://stackoverflow.com/questions/17407119/python-inspect-stack-is-slow
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frame = inspect.currentframe()
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n = 0
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while frame:
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fname = inspect.getfile(frame)
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if fname.startswith(pkg_dir) and not fname.startswith(test_dir):
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frame = frame.f_back
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n += 1
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else:
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break
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return n
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