Windows11使用Cpython 编译文件报错 error: Unable to find vcvarsall.bat 完美解决方法-编程学习网

开发环境说明：

python 3.6.2
Vs studio 2017 (已经安装C++桌面开发）

我的vcvarsall.bat 路径为：

"D:\vsstudio\VC\Auxiliary\Build\vcvarsall.bat"

一般在Vs studio 的此安装路径下

修改python源代码

修改文件为 python3.6.2\Lib\distutils\_msvccompiler.py 注意前面存在下划线：

我的文件路径为：

"D:\core_package\python3.6.2\Lib\distutils\_msvccompiler.py"

接下来使用记事本打开：

将_find_vcvarsall 函数修改：
源代码：

def _find_vcvarsall(plat_spec):
    try:
        key = winreg.OpenKeyEx(
            winreg.HKEY_LOCAL_MACHINE,
            r"Software\Microsoft\VisualStudio\SxS\VC7",
            access=winreg.KEY_READ | winreg.KEY_WOW64_32KEY
        )
    except OSError:
        log.debug("Visual C++ is not registered")
        return None, None
    with key:
        best_version = 0
        best_dir = None
        for i in count():
            try:
                v, vc_dir, vt = winreg.EnumValue(key, i)
            except OSError:
                break
            if v and vt == winreg.REG_SZ and os.path.isdir(vc_dir):
                try:
                    version = int(float(v))
                except (ValueError, TypeError):
                    continue
                if version >= 14 and version > best_version:
                    best_version, best_dir = version, vc_dir
        if not best_version:
            log.debug("No suitable Visual C++ version found")
            return None, None
        vcvarsall = os.path.join(best_dir, "vcvarsall.bat")
        if not os.path.isfile(vcvarsall):
            log.debug("%s cannot be found", vcvarsall)
            return None, None
        vcruntime = None
        vcruntime_spec = _VCVARS_PLAT_TO_VCRUNTIME_REDIST.get(plat_spec)
        if vcruntime_spec:
            vcruntime = os.path.join(best_dir,
                vcruntime_spec.format(best_version))
            if not os.path.isfile(vcruntime):
                log.debug("%s cannot be found", vcruntime)
                vcruntime = None
        return vcvarsall, vcruntime

修改为：

def _find_vcvarsall(plat_spec):
    best_dir = r"D:\vsstudio\VC\Auxiliary\Build"
    best_version = 17
    vcruntime = None
    vcruntime_spec = _VCVARS_PLAT_TO_VCRUNTIME_REDIST.get(plat_spec)
    if vcruntime_spec:
        vcruntime = os.path.join(best_dir,
                                 vcruntime_spec.format(best_version))
        if not os.path.isfile(vcruntime):
            log.debug("%s cannot be found", vcruntime)
            vcruntime = None
    print(vcruntime)
    return r"D:\vsstudio\VC\Auxiliary\Build\vcvarsall.bat", vcruntime

要修改的如下图所示：