10.11 - python build failed

[varunkworld]

Please follow the general troubleshooting steps first:

• Ran brew update and retried your prior step?
• Ran brew doctor, fixed as many issues as possible and retried your prior step?
• If you're seeing permission errors tried running sudo chown -R $(whoami) $(brew --prefix)?

You can erase any parts of this template not applicable to your Issue.

Bug reports: After updating my mac to El Capitan and installing Xcode 8 I tried to install python 2.7 using brew

$ brew install python
Warning: Building python from source:
  The bottle needs the Apple Command Line Tools to be installed.
  You can install them, if desired, with:
    xcode-select --install

==> Using the sandbox
==> Downloading https://www.python.org/ftp/python/2.7.12/Python-2.7.12.tar.xz
Already downloaded: /Users/varunkumar/Library/Caches/Homebrew/python-2.7.12.tar.xz
==> Downloading https://bugs.python.org/file30805/issue10910-workaround.txt
Already downloaded: /Users/varunkumar/Library/Caches/Homebrew/python--patch-c075353337f9ff3ccf8091693d278782fcdff62c113245d8de43c5c7acc57daf.txt
==> Patching
==> Applying issue10910-workaround.txt
patching file Include/pyport.h
Hunk #1 succeeded at 713 (offset 14 lines).
Hunk #2 succeeded at 736 (offset 14 lines).
==> ./configure --prefix=/usr/local/Cellar/python/2.7.12 --enable-ipv6 --datarootdir=/usr/local/Cellar/python/2.7.12/share --datadir=/usr/local/Cellar/python/2.7.12/share --enable-f
==> make
Last 15 lines from /Users/varunkumar/Library/Logs/Homebrew/python/02.make:
creating build/temp.macosx-10.11-x86_64-2.7/private/tmp/python-20160915-72322-pkt9dv/Python-2.7.12/Modules/_multiprocessing
clang -fno-strict-aliasing -fno-common -dynamic -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/System/Library/Frameworks/Tk.framework/Versions/8.5/Headers -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -IModules/_multiprocessing -I/private/tmp/python-20160915-72322-pkt9dv/Python-2.7.12/Mac/Include -I. -IInclude -I./Include -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/usr/include -I/usr/local/include -I/private/tmp/python-20160915-72322-pkt9dv/Python-2.7.12/Include -I/private/tmp/python-20160915-72322-pkt9dv/Python-2.7.12 -c /private/tmp/python-20160915-72322-pkt9dv/Python-2.7.12/Modules/_multiprocessing/multiprocessing.c -o build/temp.macosx-10.11-x86_64-2.7/private/tmp/python-20160915-72322-pkt9dv/Python-2.7.12/Modules/_multiprocessing/multiprocessing.o
clang -fno-strict-aliasing -fno-common -dynamic -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/System/Library/Frameworks/Tk.framework/Versions/8.5/Headers -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -IModules/_multiprocessing -I/private/tmp/python-20160915-72322-pkt9dv/Python-2.7.12/Mac/Include -I. -IInclude -I./Include -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/usr/include -I/usr/local/include -I/private/tmp/python-20160915-72322-pkt9dv/Python-2.7.12/Include -I/private/tmp/python-20160915-72322-pkt9dv/Python-2.7.12 -c /private/tmp/python-20160915-72322-pkt9dv/Python-2.7.12/Modules/_multiprocessing/socket_connection.c -o build/temp.macosx-10.11-x86_64-2.7/private/tmp/python-20160915-72322-pkt9dv/Python-2.7.12/Modules/_multiprocessing/socket_connection.o
clang -fno-strict-aliasing -fno-common -dynamic -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/System/Library/Frameworks/Tk.framework/Versions/8.5/Headers -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -IModules/_multiprocessing -I/private/tmp/python-20160915-72322-pkt9dv/Python-2.7.12/Mac/Include -I. -IInclude -I./Include -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/usr/include -I/usr/local/include -I/private/tmp/python-20160915-72322-pkt9dv/Python-2.7.12/Include -I/private/tmp/python-20160915-72322-pkt9dv/Python-2.7.12 -c /private/tmp/python-20160915-72322-pkt9dv/Python-2.7.12/Modules/_multiprocessing/semaphore.c -o build/temp.macosx-10.11-x86_64-2.7/private/tmp/python-20160915-72322-pkt9dv/Python-2.7.12/Modules/_multiprocessing/semaphore.o
clang -bundle -undefined dynamic_lookup -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk build/temp.macosx-10.11-x86_64-2.7/private/tmp/python-20160915-72322-pkt9dv/Python-2.7.12/Modules/_multiprocessing/multiprocessing.o build/temp.macosx-10.11-x86_64-2.7/private/tmp/python-20160915-72322-pkt9dv/Python-2.7.12/Modules/_multiprocessing/socket_connection.o build/temp.macosx-10.11-x86_64-2.7/private/tmp/python-20160915-72322-pkt9dv/Python-2.7.12/Modules/_multiprocessing/semaphore.o -L/usr/local/lib -o build/lib.macosx-10.11-x86_64-2.7/_multiprocessing.so
dyld: lazy symbol binding failed: Symbol not found: _getentropy
  Referenced from: /private/tmp/python-20160915-72322-pkt9dv/Python-2.7.12/Python.framework/Versions/2.7/Python
  Expected in: /usr/lib/libSystem.B.dylib

dyld: Symbol not found: _getentropy
  Referenced from: /private/tmp/python-20160915-72322-pkt9dv/Python-2.7.12/Python.framework/Versions/2.7/Python
  Expected in: /usr/lib/libSystem.B.dylib

/bin/sh: line 1: 78371 Trace/BPT trap: 5       DYLD_FRAMEWORK_PATH=/private/tmp/python-20160915-72322-pkt9dv/Python-2.7.12 CC='clang' LDSHARED='clang -bundle -undefined dynamic_lookup -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk' OPT='-DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes' _TCLTK_INCLUDES='' _TCLTK_LIBS='' ./python.exe -E ./setup.py $quiet build
make: *** [sharedmods] Error 133

[DomT4]

Please try brew update && brew install python again. Thanks!

[varunkworld]

It works now !