问题描述
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
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