我有一个Python应用程序,想要将其作为系统服务运行。当我手动运行该应用程序时,它可以正常运行。但是当我将其作为服务运行时,它无法找到使用pip install -e my_module
安装的本地模块。
该应用程序的主函数包含以下代码:
print(sys.argv)
import pip
installed_packages = pip.get_installed_distributions()
installed_packages_list = sorted(["%s==%s" % (i.key, i.version) for i in installed_packages])
print(installed_packages_list)
print('doing tox')
import tox
print('doing my_mod')
import my_mod
print(my_mod.__file__)
from my_mod.auth.http_auth_provider import HTTPAuthProvider
当我手动运行它时,我得到以下结果(请注意,在“已安装的软件包”中第二行包括my-mod):['/usr/bin/pv_api']
['aiohttp==0.19.0', 'chardet==2.3.0', 'jsonschema==2.5.1', 'pip==7.0.0', 'pluggy==0.3.1', 'pv-api==0.0.0', 'py==1.4.31', 'pycrypto==2.6.1', 'pymongo==3.1.1', 'pyyaml==3.11', 'setuptools==19.6.2', 'six==1.10.0', 'tox==2.3.1', 'virtualenv==14.0.6', 'my-mod==0.1.0', 'webauthsession==1.1.1']
doing tox
doing my_mod
/root/my_module/my_mod/__init__.py
当通过该服务运行时,日志看起来像这样(请注意,'已安装的软件包'中第二行不包括'my-mod'):
When run through the service the logs look like this (note that my-mod is NOT included on second line in 'installed packages'):
2016-02-26_00:39:01.90403 ['/usr/bin/pv_api']
2016-02-26_00:39:01.90406 ['aiohttp==0.19.0', 'chardet==2.3.0', 'jsonschema==2.5.1', 'pip==7.0.0', 'pluggy==0.3.1', 'pv-api==0.0.0', 'py==1.4.31', 'pycrypto==2.6.1', 'pymongo==3.1.1', 'pyyaml==3.11', 'setuptools==19.6.2', 'six==1.10.0', 'tox==2.3.1', 'virtualenv==14.0.6', 'webauthsession==1.1.1']
2016-02-26_00:39:01.90407 doing tox
2016-02-26_00:39:01.90407 doing my_mod
2016-02-26_00:39:01.90642 Traceback (most recent call last):
2016-02-26_00:39:01.90642 File "/usr/bin/pv_api", line 9, in <module>
2016-02-26_00:39:01.90642 load_entry_point('pv-api==0.0.0', 'console_scripts', 'pv_api')()
2016-02-26_00:39:01.90643 File "/usr/lib/python3.4/site-packages/pkg_resources/__init__.py", line 547, in load_entry_point
2016-02-26_00:39:01.90643 return get_distribution(dist).load_entry_point(group, name)
2016-02-26_00:39:01.90643 File "/usr/lib/python3.4/site-packages/pkg_resources/__init__.py", line 2719, in load_entry_point
2016-02-26_00:39:01.90643 return ep.load()
2016-02-26_00:39:01.90643 File "/usr/lib/python3.4/site-packages/pkg_resources/__init__.py", line 2379, in load
2016-02-26_00:39:01.90643 return self.resolve()
2016-02-26_00:39:01.90643 File "/usr/lib/python3.4/site-packages/pkg_resources/__init__.py", line 2385, in resolve
2016-02-26_00:39:01.90644 module = __import__(self.module_name, fromlist=['__name__'], level=0)
2016-02-26_00:39:01.90644 File "/usr/lib/python3.4/site-packages/pv/api/main.py", line 33, in <module>
2016-02-26_00:39:01.90644 import my_mod
2016-02-26_00:39:01.90644 ImportError: No module named 'my_mod'
这也许是有用的信息:
[root@7bb8a6866a85 etc]# ls -la /usr/lib/python3.4/site-packages/my-mod.egg-link
-rw-r--r-- 1 root root 37 Feb 26 00:20 /usr/lib/python3.4/site-packages/my-mod.egg-link
[root@7bb8a6866a85 etc]# cat /usr/lib/python3.4/site-packages/my-mod.egg-link
/root/my_module
编辑:
从“installed_packages”的输出中可以看出,通过requirements.txt安装的所有其他软件包都能够被正确地找到。只有这个我本地具有源代码的库在我以服务运行时找不到。(当我从命令行或从python3解释器中运行import my_mod
时可以找到它。
User=<user>
。值取决于用户名! - kuga