macos 如何检查库是否是在 Mac OS X 上构建的 32 位/64 位？
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How to check if a library is 32bit/64bit built on Mac OS X?
提问by prosseek
I'm having some trouble in using PyQt/SIP. I guess the SIP is compiled into 64bit, but Python has some problem with finding it.
我在使用 PyQt/SIP 时遇到了一些麻烦。我猜 SIP 是编译成 64 位的，但是 Python 找到它有一些问题。
File "qtdemo.py", line 46, in
import sip
ImportError: dlopen(/Library/Python/2.6/site-packages/sip.so, 2): no suitable image found. Did find:
/Library/Python/2.6/site-packages/sip.so: mach-o, but wrong architecture
- How do I know if a library (so/dylib) is 32bit or 64bit?
- How do I know if my Python is 32bit or 64bit?
- 我怎么知道一个库（so/dylib）是 32 位还是 64 位？
- 我怎么知道我的 Python 是 32 位还是 64 位？
回答by Nikolai Ruhe
The filetool can be used to identify executables.
该file工具可用于识别可执行文件。
Example:
例子：
> file /Applications/TextEdit.app/Contents/MacOS/TextEdit
/Applications/TextEdit.app/Contents/MacOS/TextEdit: Mach-O universal binary with 2 architectures
/Applications/TextEdit.app/Contents/MacOS/TextEdit (for architecture x86_64): Mach-O 64-bit executable x86_64
/Applications/TextEdit.app/Contents/MacOS/TextEdit (for architecture i386): Mach-O executable i386
回答by Ned Deily
To find the available architectures in the Python instance you are using:
要在您使用的 Python 实例中查找可用架构：
$ file "$( "$(which python)" -c "import sys;print(sys.executable)" )"
/usr/bin/python: Mach-O universal binary with 3 architectures
/usr/bin/python (for architecture x86_64): Mach-O 64-bit executable x86_64
/usr/bin/python (for architecture i386): Mach-O executable i386
/usr/bin/python (for architecture ppc7400): Mach-O executable ppc
To find whether the Python is currently running 32-bit or 64-bit (10.6 examples):
要查找 Python 当前运行的是 32 位还是 64 位（10.6 示例）：
$ /usr/bin/python2.6 -c "import sys;print('%x'%sys.maxint)"
7fffffffffffffff
$ arch -x86_64 /usr/bin/python2.6 -c "import sys;print('%x'%sys.maxint)"
7fffffffffffffff
$ arch -i386 /usr/bin/python2.6 -c "import sys;print('%x'%sys.maxint)"
7fffffff
$ arch -ppc /usr/bin/python2.6 -c "import sys;print('%x'%sys.maxint)"
7fffffff
For python3, substitute sys.maxsizefor sys.maxint:
对于python3，替换sys.maxsize为sys.maxint：
$ python3 -c "import sys;print('%x'%sys.maxsize)"
7fffffff
回答by Doug
lipo -info target/libexample-df07142d9bfd950a.a
input file target/libexample-df07142d9bfd950a.a is not a fat file
Non-fat file: target/libexample-df07142d9bfd950a.a is architecture: x86_64
or
或者
lipo -info `which python`
Non-fat file: /usr/local/bin/python is architecture: x86_64
Don't use file.
不要使用file.
