Использование virtualenv и просто попытка установки pyodbc. Все ресурсы, которые я могу найти, утверждают, что это должно быть предельно просто. После всех базовых установок MySQL и т.д. Просто выполните:
pip install pyodbc
Однако, я вижу очень странную ошибку. У него нет (насколько я могу судить), чтобы делать с отсутствующими библиотеками, и после Googling для такого рода ошибок в течение долгого времени, я не могу найти ничего конструктивного в нем вообще.
(local-dev)[email protected] ~ $ pip install pyodbc
Downloading/unpacking pyodbc
Could not find any downloads that satisfy the requirement pyodbc
Some externally hosted files were ignored (use --allow-external pyodbc to allow).
Cleaning up...
No distributions at all found for pyodbc
Storing debug log for failure in /home/espears/.pip/pip.log
Итак, я попробовал вариант "разрешить-внешний", и это не помогает:
(local-dev)[email protected] ~ $ pip install --allow-external pyodbc
You must give at least one requirement to install (see "pip help install")
Но справочная документация показывает, что я правильно использую этот параметр, например. с выхода pip help install
:
Package Index Options:
...
--allow-external <package> Allow the installation of externally hosted files
Здесь результат в файле журнала PIP:
(local-dev)[email protected] ~ $ cat /home/espears/.pip/pip.log
Downloading/unpacking pyodbc
Getting page https://pypi.python.org/simple/pyodbc/
URLs to search for versions for pyodbc:
* https://pypi.python.org/simple/pyodbc/
Analyzing links from page https://pypi.python.org/simple/pyodbc/
Skipping link http://code.google.com/p/pyodbc (from https://pypi.python.org/simple/pyodbc/); not a file
Skipping link http://code.google.com/p/pyodbc/downloads/list (from https://pypi.python.org/simple/pyodbc/); not a file
Not searching http://code.google.com/p/pyodbc (from https://pypi.python.org/simple/pyodbc/) for files because external urls are disallowed.
Not searching http://code.google.com/p/pyodbc (from https://pypi.python.org/simple/pyodbc/) for files because external urls are disallowed.
Not searching http://code.google.com/p/pyodbc (from https://pypi.python.org/simple/pyodbc/) for files because external urls are disallowed.
Not searching http://code.google.com/p/pyodbc (from https://pypi.python.org/simple/pyodbc/) for files because external urls are disallowed.
Not searching http://code.google.com/p/pyodbc (from https://pypi.python.org/simple/pyodbc/) for files because external urls are disallowed.
Not searching http://code.google.com/p/pyodbc (from https://pypi.python.org/simple/pyodbc/) for files because external urls are disallowed.
Not searching http://code.google.com/p/pyodbc (from https://pypi.python.org/simple/pyodbc/) for files because external urls are disallowed.
Not searching http://code.google.com/p/pyodbc (from https://pypi.python.org/simple/pyodbc/) for files because external urls are disallowed.
Not searching http://code.google.com/p/pyodbc (from https://pypi.python.org/simple/pyodbc/) for files because external urls are disallowed.
Not searching http://code.google.com/p/pyodbc (from https://pypi.python.org/simple/pyodbc/) for files because external urls are disallowed.
Not searching http://code.google.com/p/pyodbc (from https://pypi.python.org/simple/pyodbc/) for files because external urls are disallowed.
Not searching http://code.google.com/p/pyodbc (from https://pypi.python.org/simple/pyodbc/) for files because external urls are disallowed.
Not searching http://code.google.com/p/pyodbc/downloads/list (from https://pypi.python.org/simple/pyodbc/) for files because external urls are disallowed.
Not searching http://code.google.com/p/pyodbc/downloads/list (from https://pypi.python.org/simple/pyodbc/) for files because external urls are disallowed.
Not searching http://code.google.com/p/pyodbc/downloads/list (from https://pypi.python.org/simple/pyodbc/) for files because external urls are disallowed.
Not searching http://code.google.com/p/pyodbc/downloads/list (from https://pypi.python.org/simple/pyodbc/) for files because external urls are disallowed.
Not searching http://code.google.com/p/pyodbc/downloads/list (from https://pypi.python.org/simple/pyodbc/) for files because external urls are disallowed.
Not searching http://code.google.com/p/pyodbc/downloads/list (from https://pypi.python.org/simple/pyodbc/) for files because external urls are disallowed.
Not searching http://code.google.com/p/pyodbc/downloads/list (from https://pypi.python.org/simple/pyodbc/) for files because external urls are disallowed.
Not searching http://code.google.com/p/pyodbc/downloads/list (from https://pypi.python.org/simple/pyodbc/) for files because external urls are disallowed.
Not searching http://code.google.com/p/pyodbc/downloads/list (from https://pypi.python.org/simple/pyodbc/) for files because external urls are disallowed.
Not searching http://code.google.com/p/pyodbc/downloads/list (from https://pypi.python.org/simple/pyodbc/) for files because external urls are disallowed.
Not searching http://code.google.com/p/pyodbc/downloads/list (from https://pypi.python.org/simple/pyodbc/) for files because external urls are disallowed.
Not searching http://code.google.com/p/pyodbc/downloads/list (from https://pypi.python.org/simple/pyodbc/) for files because external urls are disallowed.
Could not find any downloads that satisfy the requirement pyodbc
Some externally hosted files were ignored (use --allow-external pyodbc to allow).
Cleaning up...
Removing temporary dir /home/espears/.virtualenvs/local-dev/build...
No distributions at all found for pyodbc
Exception information:
Traceback (most recent call last):
File "/home/espears/.virtualenvs/local-dev/local/lib/python2.7/site-packages/pip/basecommand.py", line 122, in main
status = self.run(options, args)
File "/home/espears/.virtualenvs/local-dev/local/lib/python2.7/site-packages/pip/commands/install.py", line 270, in run
requirement_set.prepare_files(finder, force_root_egg_info=self.bundle, bundle=self.bundle)
File "/home/espears/.virtualenvs/local-dev/local/lib/python2.7/site-packages/pip/req.py", line 1157, in prepare_files
url = finder.find_requirement(req_to_install, upgrade=self.upgrade)
File "/home/espears/.virtualenvs/local-dev/local/lib/python2.7/site-packages/pip/index.py", line 285, in find_requirement
raise DistributionNotFound('No distributions at all found for %s' % req)
DistributionNotFound: No distributions at all found for pyodbc
Кажется, что если я могу просто использовать параметр --allow-external
, он будет работать, потому что он явно видит общее местоположение для получения pyobbc.
Но я озадачен тем, почему это вообще необходимо, когда практически все ссылки на установку pyobbc не нужно убирать, чтобы включить внешние ссылки. Сегодня я также устанавливаю множество пакетов с небольшим количеством проблем и, конечно же, не сталкиваюсь с этой необходимостью allow-external
в любом другом случае.
Я использую pip версии 1.5 с Python 2.7.3 на Ubuntu 12.04.