安装 Python package: setup.py install - error: no commands supplied

Question

• I am trying to install python-pptx-0.5.7 package in windows 7. What I did is as follows:

   1) Downloaded the python-pptx-0.5.7.tar file from website. 2) Unzipped it and kept it in the Python34/Script folder. 3) I used command prompt to install the package as setup.py install. Here is the ouptput of the command that I wrote in command prompt c:\Python34\Scripts\python-pptx-0.5.7>setup.py install usage: setup.py [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts]...] or: setup.py --help [cmd1 cmd2...] or: setup.py --help-commands or: setup.py cmd --help error: no commands supplied.

  The second approach using "pip"

   c:\Python34\Scripts>pip install python-pptx

  Collecting python-pptx Downloading python-pptx-0.5.7.tar.gz (5.2MB) 100% |################################| 5.2MB 25kB/s Collecting lxml>=3.1.0 (from python-pptx) Downloading lxml-3.5.0.tar.gz (3.8MB) 100% |################################| 3.8MB 41kB/s Requirement already satisfied (use --upgrade to upgrade): Pillow>=2.6.1 in c:\python34\lib\site-packages (from python-pptx) Collecting XlsxWriter>=0.5.7 (from python-pptx) Downloading XlsxWriter-0.7.7-py2.py3-none-any.whl (133kB) 100% |################################| 135kB 62kB/s Building wheels for collected packages: python-pptx, lxml Running setup.py bdist_wheel for python-pptx Stored in directory: C:\Users\praveen\AppData\Local\pip\Cache\wheels\1f\fa\42\ bbc04bb0ef4be4cd49f228cc1fa3280bb99c1a37d3b193b81b Running setup.py bdist_wheel for lxml error: Microsoft Visual C++ 10.0 is required (Unable to find vcvarsall.bat).

  ---

  Failed building wheel for lxml Successfully built python-pptx Failed to build lxml ERROR: b"'xslt-config' is not recognized as an internal or external command, \r\noperable program or batch file.\r\n" ** make sure the development packages of libxml2 and libxslt are installed **

Answer 1

Please follow the official Python package installation guide .

Packages should be installed like:

pip install python-pptx

Download is automatic from pypi.python.org.

Answer 2

error: command '/usr/bin/clang' failed with exit code 69 [end of output]

note: This error originates from a subprocess, and is likely not a problem with pip. error: legacy-install-failure

× Encountered error while trying to install package. ╰─> lxml

note: This is an issue with the package mentioned above, not pip.