[BUG] Pytest: TypeError: %d format: a real number is required not NoneType

[ZzhengP]

Hello,

I have encountered a problem when I try to use pyarmor for pytest (7.3.1) in Windows 11.
The PyArmor version is show below:

INFO     PyArmor Trial Version 7.7.4
INFO     Python 3.10.10

The detailed error is:

================================================= test session starts =================================================
platform win32 -- Python 3.10.10, pytest-7.2.1, pluggy-1.0.0
rootdir: C:\Users\integration-anz\Desktop
plugins: forked-1.6.0, xdist-2.2.1
collected 1 item

tmp\test_logger.py F                                                                                             [100%]

====================================================== FAILURES =======================================================
____________________________________________________ test_answer_2 ____________________________________________________

>   ???

<frozen test_logger>:-1:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
C:\Python310\lib\logging\__init__.py:1489: in warning
    self._log(WARNING, msg, args, **kwargs)
C:\Python310\lib\logging\__init__.py:1624: in _log
    self.handle(record)
C:\Python310\lib\logging\__init__.py:1634: in handle
    self.callHandlers(record)
C:\Python310\lib\logging\__init__.py:1696: in callHandlers
    hdlr.handle(record)
C:\Python310\lib\logging\__init__.py:968: in handle
    self.emit(record)
C:\Python310\lib\site-packages\_pytest\logging.py:343: in emit
    super().emit(record)
C:\Python310\lib\logging\__init__.py:1108: in emit
    self.handleError(record)
C:\Python310\lib\logging\__init__.py:1100: in emit
    msg = self.format(record)
C:\Python310\lib\logging\__init__.py:943: in format
    return fmt.format(record)
C:\Python310\lib\site-packages\_pytest\logging.py:114: in format
    return super().format(record)
C:\Python310\lib\logging\__init__.py:681: in format
    s = self.formatMessage(record)
C:\Python310\lib\logging\__init__.py:650: in formatMessage
    return self._style.format(record)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

self = <_pytest.logging.PercentStyleMultiline object at 0x00000199764DD9C0>
record = <LogRecord: test_logger, 30, <frozen test_logger>, None, "Salut: <undefined>">

    def format(self, record: logging.LogRecord) -> str:
        if "\n" in record.message:
            if hasattr(record, "auto_indent"):
                # Passed in from the "extra={}" kwarg on the call to logging.log().
                auto_indent = self._get_auto_indent(record.auto_indent)  # type: ignore[attr-defined]
            else:
                auto_indent = self._auto_indent

            if auto_indent:
                lines = record.message.splitlines()
                formatted = self._fmt % {**record.__dict__, "message": lines[0]}

                if auto_indent < 0:
                    indentation = _remove_ansi_escape_sequences(formatted).find(
                        lines[0]
                    )
                else:
                    # Optimizes logging by allowing a fixed indentation.
                    indentation = auto_indent
                lines[0] = formatted
                return ("\n" + " " * indentation).join(lines)
>       return self._fmt % record.__dict__
E       TypeError: %d format: a real number is required, not NoneType

C:\Python310\lib\site-packages\_pytest\logging.py:204: TypeError
=============================================== short test summary info ===============================================
FAILED tmp/test_logger.py::test_answer_2 - TypeError: %d format: a real number is required, not NoneType
================================================== 1 failed in 0.43s ==================================================

This error happen only on Windows 11, and everything is working fine in Windows 10.
For reproduce this error, I use a very simple pytest script.

# content of test_sample.py
import logging

def func(x):
    return x + 1

def test_answer_2():
    logger = logging.getLogger(name=__name__)
    x = "<undefined>"
    logger.warning(f"Salut: {x}")
    assert func(3) == 4

Thanks you in advance for your helps.
Best regards

[jondy]

It seems pytest need print line no. by log, but there is no line no. got from obfuscated scripts.

Patching pytest to fix this problem.

[ZzhengP]

Change the default pytest logger argument can solve this problem: pytest --log-format="%(asctime)s %(levelname)s %(message)s"
https://docs.pytest.org/en/7.1.x/how-to/logging.html