fix_wheels.py

"""
This file "repairs" our Windows wheels by copying the necessary DLLs for pandas to run
on a barebones Windows installation() into the wheel.

NOTE: The paths for the DLLs are hard-coded to the location of the Visual Studio
redistributables
"""
import os
import shutil
import subprocess
from subprocess import CalledProcessError
import sys
import zipfile

try:
    if len(sys.argv) != 3:
        raise ValueError(
            "User must pass the path to the wheel and the destination directory."
        )
    wheel_path = sys.argv[1]
    dest_dir = sys.argv[2]
    # Figure out whether we are building on 32 or 64 bit python
    is_32 = sys.maxsize <= 2**32
    PYTHON_ARCH = "x86" if is_32 else "x64"
except ValueError:
    # Too many/little values to unpack
    raise ValueError(
        "User must pass the path to the wheel and the destination directory."
    )
if not os.path.isdir(dest_dir):
    print(f"Created directory {dest_dir}")
    os.mkdir(dest_dir)

wheel_name = os.path.basename(wheel_path)
success = True

try:
    # Use the wheel CLI for zipping up the wheel since the CLI will
    # take care of rebuilding the hashes found in the record file
    tmp_dir = os.path.join(dest_dir, "tmp")
    with zipfile.ZipFile(wheel_path, "r") as f:
        # Extracting all the members of the zip
        # into a specific location.
        f.extractall(path=tmp_dir)
    base_redist_dir = (
        f"C:/Program Files (x86)/Microsoft Visual Studio/2019/"
        f"Enterprise/VC/Redist/MSVC/14.29.30133/{PYTHON_ARCH}/"
        f"Microsoft.VC142.CRT/"
    )
    required_dlls = ["msvcp140.dll", "concrt140.dll"]
    if not is_32:
        required_dlls += ["vcruntime140_1.dll"]
    dest_dll_dir = os.path.join(tmp_dir, "pandas/_libs/window")
    for dll in required_dlls:
        src = os.path.join(base_redist_dir, dll)
        shutil.copy(src, dest_dll_dir)
    subprocess.run(["wheel", "pack", tmp_dir, "-d", dest_dir], check=True)
except CalledProcessError:
    print("Failed to add DLLS to wheel.")
    sys.exit(1)
print("Successfully repaired wheel")