使用python36安裝python的murmurhash的時候遇到上述問題，原因是沒有找到vcvarsall.bat。查找vcvarsall.bat的方法是定義在_msvccompiler.py檔案中的（注意該檔案前面是有下劃線的！），比如我本地的檔案路徑為"C:\Program Files\Python36\Lib\distutils\_msvccompiler.py“
打開該檔案，修改函數_find_vcvarsall。我本地安裝的是vs2017，vcvarsall.bat的路徑為“E:\tools\vs2017\VC\Auxiliary\Build\vcvarsall.bat”
_find_vcvarsall的原文如下：
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 修改為：
def _find_vcvarsall(plat_spec):
best_dir = r'E:\tools\vs2017\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'E:\tools\vs2017\VC\Auxiliary\Build\vcvarsall.bat', vcruntime 直接運作python安裝即可。安裝完後将該檔案還原
如果遇到如下問題：
- 找不到cl.exe
解決方法：将cl.exe的路徑加入到系統環境變量path即可
- mmh3module.cpp(9): error C2371: “int32_t”: 重定義；不同的基類型
解決辦法：這個是因為int32_t的宏定義與其他地方重複，将mmh3module.cpp，murmur_hash_3.cpp，murmur_hash_3.hpp這三個檔案中的int32_t全部替換為其他名稱即可，比如int32_tA（或增加#ifndef判斷），儲存後重新安裝