[Python] polars.meta.build:5: UserWarning: Polars binary is missing

Discussão em 'Python' iniciado por Stack, Junho 13, 2025.

  1. Stack

    Stack Membro Participativo

    I am building a panda3d application and I am trying to use polars as a faster replacement for pandas. Everything works fine when running the application in my python environment. However, if I try to build an executable for Windows the build is successful but it would fail at runtime with the error saying that PySeries does not exist and the warning that Polars binary is missing.

    I can see the polars.polars.pyd in my build directory so it is there, however import polars does not find the binary.

    Is this a known polars issue? is there a solution for this?

    def use_polars():
    """Ensure Polars can find its binary components"""
    try:
    import polars
    # Force initialization of Polars internals
    polars.DataFrame({'test': [1]}) # Simple test to trigger binary loading
    print("Success finding and initializing polars Series")
    except Exception as e:
    print(f"Warning: Polars initialization issue: {e}")
    print("trace")
    print(traceback.format_exc())
    print("trace")
    traceback.print_exc()
    print("trace end")


    Error:

    zoneinfo._tzpath:44: InvalidTZPathWarning: Invalid paths specified in PYTHONTZPATH environment variable. Paths should be absolute but found the following relative paths:
    .\share\zoneinfo
    polars.meta.build:5: UserWarning: Polars binary is missing!
    Warning: Polars initialization issue: name 'PySeries' is not defined
    trace
    Traceback (most recent call last):
    File "test", line 38, in use_polars
    File "polars.dataframe.frame", line 376, in __init__
    File "polars._utils.construction.dataframe", line 160, in dict_to_pydf
    File "polars._utils.construction.dataframe", line 389, in _expand_dict_values
    File "polars.series.series", line 300, in __init__
    File "polars._utils.construction.series", line 295, in sequence_to_pyseries
    NameError: name 'PySeries' is not defined
    trace end

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