通过CMD安装软件包时出错

分类：编程问答

如何解决通过CMD安装软件包时出错

我正在尝试通过CMD（管理员，W10）安装一组软件包。

我使用了创建的文本文件requirements.txt，如下所示。

psycopg2
requests
jsonlib
os-sys
openpyxl
pandas
numpy

enter image description here

我做了一些研究，从中我发现安装psycopg2是解决方案（因此现在要添加它），但是当Installing backend dependencies时我仍然收到错误消息。我正在Admin CMD中使用pip install -r requirements.txt命令。

完整的CMD报告：

C:\Develop\Scripts>pip install -r requirements.txt
Collecting psycopg2
  Downloading psycopg2-2.8.5-cp36-cp36m-win32.whl (984 kB)
     |████████████████████████████████| 984 kB 819 kB/s
Requirement already satisfied: requests in c:\develop\lib\site-packages (from -r requirements.txt (line 2)) (2.22.0)
Collecting jsonlib
  Using cached jsonlib-1.6.1.tar.gz (43 kB)
Collecting os-sys
  Using cached os_sys-2.1.4-py3-none-any.whl (15.6 MB)
Collecting openpyxl
  Using cached openpyxl-3.0.4-py2.py3-none-any.whl (241 kB)
Collecting pandas
  Using cached pandas-1.1.0-cp36-cp36m-win32.whl (8.1 MB)
Collecting numpy
  Using cached numpy-1.19.1-cp36-cp36m-win32.whl (10.9 MB)
Requirement already satisfied: chardet<3.1.0,>=3.0.2 in c:\develop\lib\site-packages (from requests->-r requirements.txt (line 2)) (3.0.4)
Requirement already satisfied: urllib3!=1.25.0,!=1.25.1,<1.26,>=1.21.1 in c:\develop\lib\site-packages (from requests->-r requirements.txt (line 2)) (1.25.3)
Requirement already satisfied: certifi>=2017.4.17 in c:\develop\lib\site-packages (from requests->-r requirements.txt (line 2)) (2019.6.16)
Requirement already satisfied: idna<2.9,>=2.5 in c:\develop\lib\site-packages (from requests->-r requirements.txt (line 2)) (2.8)
Collecting matplotlib
  Using cached matplotlib-3.3.1-cp36-cp36m-win32.whl (8.3 MB)
Collecting cefpython3
  Downloading cefpython3-66.0-py2.py3-none-win32.whl (64.3 MB)
     |████████████████████████████████| 64.3 MB 52 kB/s
Collecting tuspy
  Downloading tuspy-0.2.4.tar.gz (9.1 kB)
Collecting sqlparse
  Using cached sqlparse-0.3.1-py2.py3-none-any.whl (40 kB)
Collecting tornado
  Using cached tornado-6.0.4-cp36-cp36m-win32.whl (416 kB)
Collecting pyvalid
  Using cached pyvalid-0.9.2-py3-none-any.whl (8.5 kB)
Collecting psutil
  Downloading psutil-5.7.2-cp36-cp36m-win32.whl (238 kB)
     |████████████████████████████████| 238 kB 1.3 MB/s
Collecting python-dateutil<2.8,>=2.7
  Using cached python_dateutil-2.7.5-py2.py3-none-any.whl (225 kB)
Collecting pytz
  Using cached pytz-2020.1-py2.py3-none-any.whl (510 kB)
Collecting spacy==2.2.0
  Using cached spacy-2.2.0.tar.gz (5.8 MB)
  Installing build dependencies ... done
  Getting requirements to build wheel ... done
  Installing backend dependencies ... error
  ERROR: Command errored out with exit status 1:
   command: 'c:\develop\python.exe' 'c:\develop\lib\site-packages\pip' install --ignore-installed --no-user --prefix 'C:\Users\deadevil\AppData\Local\Temp\pip-build-env-dau1pejs\normal' --no-warn-script-location --no-binary :none: --only-binary :none: -i https://pypi.org/simple -- 'murmurhash<1.1.0,>=0.28.0' 'cymem<2.1.0,>=2.0.2' 'cython>=0.25' 'preshed<3.1.0,>=3.0.2' wheel 'thinc<7.2.0,>=7.1.1'
       cwd: None
  Complete output (123 lines):
  Collecting murmurhash<1.1.0,>=0.28.0
    Downloading murmurhash-1.0.2.tar.gz (35 kB)
  Collecting cymem<2.1.0,>=2.0.2
    Downloading cymem-2.0.3.tar.gz (51 kB)
  Collecting cython>=0.25
    Using cached Cython-0.29.21-cp36-cp36m-win32.whl (1.5 MB)
  Collecting preshed<3.1.0,>=3.0.2
    Downloading preshed-3.0.2.tar.gz (167 kB)
  Collecting wheel
    Using cached wheel-0.35.1-py2.py3-none-any.whl (33 kB)
  Collecting thinc<7.2.0,>=7.1.1
    Using cached thinc-7.1.1.tar.gz (1.9 MB)
      ERROR: Command errored out with exit status 1:
       command: 'c:\develop\python.exe' -c 'import sys,setuptools,tokenize; sys.argv[0] = '"'"'C:\\Users\\deadevil\\AppData\\Local\\Temp\\pip-install-w0prg4as\\thinc\\setup.py'"'"'; __file__='"'"'C:\\Users\\deadevil\\AppData\\Local\\Temp\\pip-install-w0prg4as\\thinc\\setup.py'"'"';f=getattr(tokenize,'"'"'open'"'"',open)(__file__);code=f.read().replace('"'"'\r\n'"'"','"'"'\n'"'"');f.close();exec(compile(code,__file__,'"'"'exec'"'"'))' egg_info --egg-base 'C:\Users\deadevil\AppData\Local\Temp\pip-pip-egg-info-hx_zwz0x'
           cwd: C:\Users\deadevil\AppData\Local\Temp\pip-install-w0prg4as\thinc\
      Complete output (105 lines):
      Processing numpy/random\_bounded_integers.pxd.in
      Processing numpy/random\bit_generator.pyx
      Traceback (most recent call last):
        File "C:\Users\deadevil\AppData\Local\Temp\easy_install-pjf6m7xq\numpy-1.19.1\tools\cythonize.py",line 59,in process_pyx
          from Cython.Compiler.Version import version as cython_version
      ModuleNotFoundError: No module named 'Cython'

      During handling of the above exception,another exception occurred:

      Traceback (most recent call last):
        File "C:\Users\deadevil\AppData\Local\Temp\easy_install-pjf6m7xq\numpy-1.19.1\tools\cythonize.py",line 235,in <module>
          main()
        File "C:\Users\deadevil\AppData\Local\Temp\easy_install-pjf6m7xq\numpy-1.19.1\tools\cythonize.py",line 231,in main
          find_process_files(root_dir)
        File "C:\Users\deadevil\AppData\Local\Temp\easy_install-pjf6m7xq\numpy-1.19.1\tools\cythonize.py",line 222,in find_process_files
          process(root_dir,fromfile,tofile,function,hash_db)
        File "C:\Users\deadevil\AppData\Local\Temp\easy_install-pjf6m7xq\numpy-1.19.1\tools\cythonize.py",line 188,in process
          processor_function(fromfile,tofile)
        File "C:\Users\deadevil\AppData\Local\Temp\easy_install-pjf6m7xq\numpy-1.19.1\tools\cythonize.py",line 64,in process_pyx
          raise OSError('Cython needs to be installed in Python as a module')
      OSError: Cython needs to be installed in Python as a module
      Running from numpy source directory.
      C:\Users\deadevil\AppData\Local\Temp\easy_install-pjf6m7xq\numpy-1.19.1\setup.py:470: UserWarning: Unrecognized setuptools command,proceeding with generating Cython sources and expanding templates
        run_build = parse_setuppy_commands()
      Traceback (most recent call last):
        File "c:\develop\lib\site-packages\setuptools\sandbox.py",line 157,in save_modules
          yield saved
        File "c:\develop\lib\site-packages\setuptools\sandbox.py",line 198,in setup_context
          yield
        File "c:\develop\lib\site-packages\setuptools\sandbox.py",line 248,in run_setup
          DirectorySandbox(setup_dir).run(runner)
        File "c:\develop\lib\site-packages\setuptools\sandbox.py",line 278,in run
          return func()
        File "c:\develop\lib\site-packages\setuptools\sandbox.py",line 246,in runner
          _execfile(setup_script,ns)
        File "c:\develop\lib\site-packages\setuptools\sandbox.py",line 47,in _execfile
          exec(code,globals,locals)
        File "C:\Users\deadevil\AppData\Local\Temp\easy_install-pjf6m7xq\numpy-1.19.1\setup.py",line 499,in <module>
        File "C:\Users\deadevil\AppData\Local\Temp\easy_install-pjf6m7xq\numpy-1.19.1\setup.py",line 479,in setup_package
        File "C:\Users\deadevil\AppData\Local\Temp\easy_install-pjf6m7xq\numpy-1.19.1\setup.py",line 274,in generate_cython
      RuntimeError: Running cythonize failed!

      During handling of the above exception,another exception occurred:

      Traceback (most recent call last):
        File "<string>",line 1,in <module>
        File "C:\Users\deadevil\AppData\Local\Temp\pip-install-w0prg4as\thinc\setup.py",line 261,in <module>
          setup_package()
        File "C:\Users\deadevil\AppData\Local\Temp\pip-install-w0prg4as\thinc\setup.py",line 257,in setup_package
          cmdclass={"build_ext": build_ext_subclass},File "c:\develop\lib\distutils\core.py",line 108,in setup
          _setup_distribution = dist = klass(attrs)
        File "c:\develop\lib\site-packages\setuptools\dist.py",line 315,in __init__
          self.fetch_build_eggs(attrs['setup_requires'])
        File "c:\develop\lib\site-packages\setuptools\dist.py",line 361,in fetch_build_eggs
          replace_conflicting=True,File "c:\develop\lib\site-packages\pkg_resources\__init__.py",line 850,in resolve
          dist = best[req.key] = env.best_match(req,ws,installer)
        File "c:\develop\lib\site-packages\pkg_resources\__init__.py",line 1122,in best_match
          return self.obtain(req,line 1134,in obtain
          return installer(requirement)
        File "c:\develop\lib\site-packages\setuptools\dist.py",line 429,in fetch_build_egg
          return cmd.easy_install(req)
        File "c:\develop\lib\site-packages\setuptools\command\easy_install.py",line 665,in easy_install
          return self.install_item(spec,dist.location,tmpdir,deps)
        File "c:\develop\lib\site-packages\setuptools\command\easy_install.py",line 695,in install_item
          dists = self.install_eggs(spec,download,tmpdir)
        File "c:\develop\lib\site-packages\setuptools\command\easy_install.py",line 876,in install_eggs
          return self.build_and_install(setup_script,setup_base)
        File "c:\develop\lib\site-packages\setuptools\command\easy_install.py",line 1115,in build_and_install
          self.run_setup(setup_script,setup_base,args)
        File "c:\develop\lib\site-packages\setuptools\command\easy_install.py",line 1101,in run_setup
          run_setup(setup_script,args)
        File "c:\develop\lib\site-packages\setuptools\sandbox.py",line 251,in run_setup
          raise
        File "c:\develop\lib\contextlib.py",line 99,in __exit__
          self.gen.throw(type,value,traceback)
        File "c:\develop\lib\site-packages\setuptools\sandbox.py",in setup_context
          yield
        File "c:\develop\lib\contextlib.py",line 169,in save_modules
          saved_exc.resume()
        File "c:\develop\lib\site-packages\setuptools\sandbox.py",line 144,in resume
          six.reraise(type,exc,self._tb)
        File "c:\develop\lib\site-packages\pkg_resources\_vendor\six.py",line 685,in reraise
          raise value.with_traceback(tb)
        File "c:\develop\lib\site-packages\setuptools\sandbox.py",in generate_cython
      RuntimeError: Running cythonize failed!
      Cythonizing sources
      ----------------------------------------
  ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.
  ----------------------------------------
ERROR: Command errored out with exit status 1: 'c:\develop\python.exe' 'c:\develop\lib\site-packages\pip' install --ignore-installed --no-user --prefix 'C:\Users\deadevil\AppData\Local\Temp\pip-build-env-dau1pejs\normal' --no-warn-script-location --no-binary :none: --only-binary :none: -i https://pypi.org/simple -- 'murmurhash<1.1.0,>=7.1.1' Check the logs for full command output.

任何人都可以提供帮助，以及如何解决？

解决方法

尝试一下：

BEGIN
     Declare @Value varchar(50)
     SET @Value = NULL
     SELECT * from TestTable where Value = IIF(@Value is NULL,Value,@Value)
    END

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