Error during installation

Using Streamlit
1

Dear Team,

Getting the following error while installing streamlit. Please help

"ERROR: Could not build wheels for backports.zoneinfo which use PEP 517 and cannot be installed directly"
---Full error:
 Using cached tzdata-2021.5-py2.py3-none-any.whl (339 kB)
Building wheels for collected packages: backports.zoneinfo
  Building wheel for backports.zoneinfo (PEP 517) ... error
  ERROR: Command errored out with exit status 1:
   command: /opt/anaconda3/envs/st/bin/python /opt/anaconda3/envs/st/lib/python3.6/site-packages/pip/_vendor/pep517/in_process/_in_process.py build_wheel /var/folders/nl/83xqjm8x18z2ymb3nm8x1qcw0000gn/T/tmp6sxxkwg4
       cwd: /private/var/folders/nl/83xqjm8x18z2ymb3nm8x1qcw0000gn/T/pip-install-1bxuhs8t/backports-zoneinfo_bf635f132515425cad8867f2f29c99da
  Complete output (36 lines):
  running bdist_wheel
  running build
  running build_py
  creating build
  creating build/lib.macosx-10.9-x86_64-3.6
  creating build/lib.macosx-10.9-x86_64-3.6/backports
  copying src/backports/__init__.py -> build/lib.macosx-10.9-x86_64-3.6/backports
  creating build/lib.macosx-10.9-x86_64-3.6/backports/zoneinfo
  copying src/backports/zoneinfo/_version.py -> build/lib.macosx-10.9-x86_64-3.6/backports/zoneinfo
  copying src/backports/zoneinfo/_common.py -> build/lib.macosx-10.9-x86_64-3.6/backports/zoneinfo
  copying src/backports/zoneinfo/__init__.py -> build/lib.macosx-10.9-x86_64-3.6/backports/zoneinfo
  copying src/backports/zoneinfo/_zoneinfo.py -> build/lib.macosx-10.9-x86_64-3.6/backports/zoneinfo
  copying src/backports/zoneinfo/_tzpath.py -> build/lib.macosx-10.9-x86_64-3.6/backports/zoneinfo
  running egg_info
  writing src/backports.zoneinfo.egg-info/PKG-INFO
  writing dependency_links to src/backports.zoneinfo.egg-info/dependency_links.txt
  writing requirements to src/backports.zoneinfo.egg-info/requires.txt
  writing top-level names to src/backports.zoneinfo.egg-info/top_level.txt
  reading manifest file 'src/backports.zoneinfo.egg-info/SOURCES.txt'
  reading manifest template 'MANIFEST.in'
  warning: no files found matching '*.png' under directory 'docs'
  warning: no files found matching '*.svg' under directory 'docs'
  no previously-included directories found matching 'docs/_build'
  no previously-included directories found matching 'docs/_output'
  adding license file 'LICENSE'
  adding license file 'licenses/LICENSE_APACHE'
  writing manifest file 'src/backports.zoneinfo.egg-info/SOURCES.txt'
  copying src/backports/zoneinfo/__init__.pyi -> build/lib.macosx-10.9-x86_64-3.6/backports/zoneinfo
  copying src/backports/zoneinfo/py.typed -> build/lib.macosx-10.9-x86_64-3.6/backports/zoneinfo
  running build_ext
  building 'backports.zoneinfo._czoneinfo' extension
  creating build/temp.macosx-10.9-x86_64-3.6
  creating build/temp.macosx-10.9-x86_64-3.6/lib
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/opt/anaconda3/envs/st/include -arch x86_64 -I/opt/anaconda3/envs/st/include -arch x86_64 -I/opt/anaconda3/envs/st/include/python3.6m -c lib/zoneinfo_module.c -o build/temp.macosx-10.9-x86_64-3.6/lib/zoneinfo_module.o -std=c99
  xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun
  error: command 'gcc' failed with exit status 1
  ----------------------------------------
  ERROR: Failed building wheel for backports.zoneinfo
Failed to build backports.zoneinfo
ERROR: Could not build wheels for backports.zoneinfo which use PEP 517 and cannot be installed directly
2

Hi @Prabhat, welcome to the Streamlit community!

What version of OSX, Python and Streamlit are you trying to use?

Best,
Randy

3

@randyzwitch I’m getting this same error and figured I’d piggyback on this thread which looks like it was never updated. I’m running OS X 12.5 Python 3.8.9 and just trying to pip install streamlit I get:

Building wheels for collected packages: backports.zoneinfo
  Building wheel for backports.zoneinfo (pyproject.toml) ... error
  error: subprocess-exited-with-error
  
  × Building wheel for backports.zoneinfo (pyproject.toml) did not run successfully.
  │ exit code: 1
  ╰─> [41 lines of output]
      running bdist_wheel
      running build
      running build_py
      creating build
      creating build/lib.macosx-10.14-arm64-cpython-38
      creating build/lib.macosx-10.14-arm64-cpython-38/backports
      copying src/backports/__init__.py -> build/lib.macosx-10.14-arm64-cpython-38/backports
      creating build/lib.macosx-10.14-arm64-cpython-38/backports/zoneinfo
      copying src/backports/zoneinfo/_version.py -> build/lib.macosx-10.14-arm64-cpython-38/backports/zoneinfo
      copying src/backports/zoneinfo/_common.py -> build/lib.macosx-10.14-arm64-cpython-38/backports/zoneinfo
      copying src/backports/zoneinfo/__init__.py -> build/lib.macosx-10.14-arm64-cpython-38/backports/zoneinfo
      copying src/backports/zoneinfo/_zoneinfo.py -> build/lib.macosx-10.14-arm64-cpython-38/backports/zoneinfo
      copying src/backports/zoneinfo/_tzpath.py -> build/lib.macosx-10.14-arm64-cpython-38/backports/zoneinfo
      running egg_info
      writing src/backports.zoneinfo.egg-info/PKG-INFO
      writing dependency_links to src/backports.zoneinfo.egg-info/dependency_links.txt
      writing requirements to src/backports.zoneinfo.egg-info/requires.txt
      writing top-level names to src/backports.zoneinfo.egg-info/top_level.txt
      reading manifest file 'src/backports.zoneinfo.egg-info/SOURCES.txt'
      reading manifest template 'MANIFEST.in'
      /private/var/folders/4c/zdxnlhws1bjdddlk2qwmf7p00000gn/T/pip-build-env-tznwshr0/overlay/lib/python3.8/site-packages/setuptools/config/setupcfg.py:508: SetuptoolsDeprecationWarning: The license_file parameter is deprecated, use license_files instead.
        warnings.warn(msg, warning_class)
      warning: no files found matching '*.png' under directory 'docs'
      warning: no files found matching '*.svg' under directory 'docs'
      no previously-included directories found matching 'docs/_build'
      no previously-included directories found matching 'docs/_output'
      adding license file 'LICENSE'
      adding license file 'licenses/LICENSE_APACHE'
      writing manifest file 'src/backports.zoneinfo.egg-info/SOURCES.txt'
      copying src/backports/zoneinfo/__init__.pyi -> build/lib.macosx-10.14-arm64-cpython-38/backports/zoneinfo
      copying src/backports/zoneinfo/py.typed -> build/lib.macosx-10.14-arm64-cpython-38/backports/zoneinfo
      running build_ext
      building 'backports.zoneinfo._czoneinfo' extension
      creating build/temp.macosx-10.14-arm64-cpython-38
      creating build/temp.macosx-10.14-arm64-cpython-38/lib
      clang -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -iwithsysroot/System/Library/Frameworks/System.framework/PrivateHeaders -iwithsysroot/Applications/Xcode.app/Contents/Developer/Library/Frameworks/Python3.framework/Versions/3.8/Headers -arch arm64 -arch x86_64 -Werror=implicit-function-declaration -I/Users/evanzamir/Streamlit/.env/include -I/Applications/Xcode.app/Contents/Developer/Library/Frameworks/Python3.framework/Versions/3.8/Headers -c lib/zoneinfo_module.c -o build/temp.macosx-10.14-arm64-cpython-38/lib/zoneinfo_module.o -std=c99
      lib/zoneinfo_module.c:1:10: fatal error: 'Python.h' file not found
      #include "Python.h"
               ^~~~~~~~~~
      1 error generated.
      error: command '/usr/bin/clang' failed with exit code 1
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
  ERROR: Failed building wheel for backports.zoneinfo
Failed to build backports.zoneinfo
ERROR: Could not build wheels for backports.zoneinfo, which is required to install pyproject.toml-based projects

It’s actually very odd because I have Streamlit running in another virtual environment on the very same computer. In that venv it is streamlit==1.12.2.

4

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