如何在Mac上使用wide-build安装python

Question

I found that Python on my Mac build with narrow-build which will raise character range error when i use the re model.

So I want to install the wide-build in my Mac.So how can I install Python with wide-build on Mac?

Answer 1

If you really need a "wide build" of Python 2 on OS X to support Unicode code points above 0xffff , you'll probably have to build it yourself from source. Most distributions for OS X that I am aware of use the default "narrow build"; one exception is MacPorts which does support a wide-build variant:

sudo port install python27 +ucs4

To build Python yourself from source, download and unpack the latest Python source tarball and set appropriate configure arguments for your situation. The key one is --enable-unicode=ucs4 . For example, a minimal configuration might be:

curl -O https://www.python.org/ftp/python/2.7.8/Python-2.7.8.tgz
tar xf ./Python-2.7.8.tgz
cd ./Python-2.7.8
./configure --enable-unicode=ucs4 --prefix=/path/to/install MACOSX_DEPLOYMENT_TARGET=10.9
make
make install
cd
/path/to/install/bin/python2.7

 Python 2.7.8 (default, Aug 3 2014, 22:27:28) [GCC 4.2.1 Compatible Apple LLVM 5.1 (clang-503.0.40)] on darwin Type "help", "copyright", "credits" or "license" for more information. >>> import sys >>> sys.maxunicode 1114111 

As noted by Jason, current Python 3 releases always support all Unicode characters.

Answer 2

If using Python3 upgrade to the latest version. In 3.3 and later:

The distinction between narrow and wide Unicode builds is dropped.

http://legacy.python.org/dev/peps/pep-0393/