我正在使用 Ubuntu Mate：
操作系统：Ubuntu 16.04.6 LTS
内核：Linux 3.4.39-BPI-M3-Kernel
架构： arm
我已经安装了 Python 2.7 & 3.5.2 以及 3.7.7
当我尝试安装 virtualenv 时返回错误：
pi@bpi-iot-ros-ai:/usr/bin$ pip3 install virtualenv Defaulting to user
installation because normal site-packages is not writeable ERROR:
Exception: Traceback (most recent call last): File
"/usr/local/lib/python3.7/site-packages/pip/_internal/cli/base_command.py",
line 188, in _main
status = self.run(options, args) File "/usr/local/lib/python3.7/site-packages/pip/_internal/cli/req_command.py",
line 185, in wrapper
return func(self, options, args) File "/usr/local/lib/python3.7/site-packages/pip/_internal/commands/install.py",
line 278, in run
session = self.get_default_session(options) File "/usr/local/lib/python3.7/site-packages/pip/_internal/cli/req_command.py",
line 83, in get_default_session
self._session = self.enter_context(self._build_session(options)) File
"/usr/local/lib/python3.7/site-packages/pip/_internal/cli/req_command.py",
line 100, in _build_session
index_urls=self._get_index_urls(options), File "/usr/local/lib/python3.7/site-packages/pip/_internal/network/session.py",
line 249, in __init__
self.headers["User-Agent"] = user_agent() File "/usr/local/lib/python3.7/site-packages/pip/_internal/network/session.py",
line 132, in user_agent
zip(["name", "version", "id"], distro.linux_distribution()), File "/usr/local/lib/python3.7/site-packages/pip/_vendor/distro.py",
line 125, in linux_distribution
return _distro.linux_distribution(full_distribution_name) File "/usr/local/lib/python3.7/site-packages/pip/_vendor/distro.py", line
681, in linux_distribution
self.version(), File "/usr/local/lib/python3.7/site-packages/pip/_vendor/distro.py", line
741, in version
self.lsb_release_attr('release'), File "/usr/local/lib/python3.7/site-packages/pip/_vendor/distro.py", line
903, in lsb_release_attr
return self._lsb_release_info.get(attribute, '') File "/usr/local/lib/python3.7/site-packages/pip/_vendor/distro.py", line
556, in __get__
ret = obj.__dict__[self._fname] = self._f(obj) File "/usr/local/lib/python3.7/site-packages/pip/_vendor/distro.py", line
1014, in _lsb_release_info
stdout = subprocess.check_output(cmd, stderr=devnull) File "/usr/local/lib/python3.7/subprocess.py", line 411, in check_output
**kwargs).stdout File "/usr/local/lib/python3.7/subprocess.py", line 512, in run
output=stdout, stderr=stderr) subprocess.CalledProcessError: Command '('lsb_release', '-a')' returned non-zero exit status 1.
Traceback (most recent call last): File "/usr/local/bin/pip3", line
10, in <module>
sys.exit(main()) File "/usr/local/lib/python3.7/site-packages/pip/_internal/cli/main.py",
line 75, in main
return command.main(cmd_args) File "/usr/local/lib/python3.7/site-packages/pip/_internal/cli/base_command.py",
line 114, in main
return self._main(args) File "/usr/local/lib/python3.7/site-packages/pip/_internal/cli/base_command.py",
line 226, in _main
self.handle_pip_version_check(options) File "/usr/local/lib/python3.7/site-packages/pip/_internal/cli/req_command.py",
line 155, in handle_pip_version_check
timeout=min(5, options.timeout) File "/usr/local/lib/python3.7/site-packages/pip/_internal/cli/req_command.py",
line 100, in _build_session
index_urls=self._get_index_urls(options), File "/usr/local/lib/python3.7/site-packages/pip/_internal/network/session.py",
line 249, in __init__
self.headers["User-Agent"] = user_agent() File "/usr/local/lib/python3.7/site-packages/pip/_internal/network/session.py",
line 132, in user_agent
zip(["name", "version", "id"], distro.linux_distribution()), File "/usr/local/lib/python3.7/site-packages/pip/_vendor/distro.py",
line 125, in linux_distribution
return _distro.linux_distribution(full_distribution_name) File "/usr/local/lib/python3.7/site-packages/pip/_vendor/distro.py", line
681, in linux_distribution
self.version(), File "/usr/local/lib/python3.7/site-packages/pip/_vendor/distro.py", line
741, in version
self.lsb_release_attr('release'), File "/usr/local/lib/python3.7/site-packages/pip/_vendor/distro.py", line
903, in lsb_release_attr
return self._lsb_release_info.get(attribute, '') File "/usr/local/lib/python3.7/site-packages/pip/_vendor/distro.py", line
556, in __get__
ret = obj.__dict__[self._fname] = self._f(obj) File "/usr/local/lib/python3.7/site-packages/pip/_vendor/distro.py", line
1014, in _lsb_release_info
stdout = subprocess.check_output(cmd, stderr=devnull) File "/usr/local/lib/python3.7/subprocess.py", line 411, in check_output
**kwargs).stdout File "/usr/local/lib/python3.7/subprocess.py", line 512, in run
output=stdout, stderr=stderr) subprocess.CalledProcessError: Command '('lsb_release', '-a')' returned non-zero exit status 1.
pi@bpi-iot-ros-ai:/usr/bin$
如果我使用 --user 标志：
pi@bpi-iot-ros-ai:/usr/bin$ pip3 install virtualenv --user
ERROR: Exception:
Traceback (most recent call last):
File "/usr/local/lib/python3.7/site-packages/pip/_internal/cli/base_command.py", line 188, in _main
status = self.run(options, args)
File "/usr/local/lib/python3.7/site-packages/pip/_internal/cli/req_command.py", line 185, in wrapper
return func(self, options, args)
File "/usr/local/lib/python3.7/site-packages/pip/_internal/commands/install.py", line 278, in run
session = self.get_default_session(options)
File "/usr/local/lib/python3.7/site-packages/pip/_internal/cli/req_command.py", line 83, in get_default_session
self._session = self.enter_context(self._build_session(options))
File "/usr/local/lib/python3.7/site-packages/pip/_internal/cli/req_command.py", line 100, in _build_session
index_urls=self._get_index_urls(options),
File "/usr/local/lib/python3.7/site-packages/pip/_internal/network/session.py", line 249, in __init__
self.headers["User-Agent"] = user_agent()
File "/usr/local/lib/python3.7/site-packages/pip/_internal/network/session.py", line 132, in user_agent
zip(["name", "version", "id"], distro.linux_distribution()),
File "/usr/local/lib/python3.7/site-packages/pip/_vendor/distro.py", line 125, in linux_distribution
return _distro.linux_distribution(full_distribution_name)
File "/usr/local/lib/python3.7/site-packages/pip/_vendor/distro.py", line 681, in linux_distribution
self.version(),
File "/usr/local/lib/python3.7/site-packages/pip/_vendor/distro.py", line 741, in version
self.lsb_release_attr('release'),
File "/usr/local/lib/python3.7/site-packages/pip/_vendor/distro.py", line 903, in lsb_release_attr
return self._lsb_release_info.get(attribute, '')
File "/usr/local/lib/python3.7/site-packages/pip/_vendor/distro.py", line 556, in __get__
ret = obj.__dict__[self._fname] = self._f(obj)
File "/usr/local/lib/python3.7/site-packages/pip/_vendor/distro.py", line 1014, in _lsb_release_info
stdout = subprocess.check_output(cmd, stderr=devnull)
File "/usr/local/lib/python3.7/subprocess.py", line 411, in check_output
**kwargs).stdout
File "/usr/local/lib/python3.7/subprocess.py", line 512, in run
output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '('lsb_release', '-a')' returned non-zero exit status 1.
Traceback (most recent call last):
File "/usr/local/bin/pip3", line 10, in <module>
sys.exit(main())
File "/usr/local/lib/python3.7/site-packages/pip/_internal/cli/main.py", line 75, in main
return command.main(cmd_args)
File "/usr/local/lib/python3.7/site-packages/pip/_internal/cli/base_command.py", line 114, in main
return self._main(args)
File "/usr/local/lib/python3.7/site-packages/pip/_internal/cli/base_command.py", line 226, in _main
self.handle_pip_version_check(options)
File "/usr/local/lib/python3.7/site-packages/pip/_internal/cli/req_command.py", line 155, in handle_pip_version_check
timeout=min(5, options.timeout)
File "/usr/local/lib/python3.7/site-packages/pip/_internal/cli/req_command.py", line 100, in _build_session
index_urls=self._get_index_urls(options),
File "/usr/local/lib/python3.7/site-packages/pip/_internal/network/session.py", line 249, in __init__
self.headers["User-Agent"] = user_agent()
File "/usr/local/lib/python3.7/site-packages/pip/_internal/network/session.py", line 132, in user_agent
zip(["name", "version", "id"], distro.linux_distribution()),
File "/usr/local/lib/python3.7/site-packages/pip/_vendor/distro.py", line 125, in linux_distribution
return _distro.linux_distribution(full_distribution_name)
File "/usr/local/lib/python3.7/site-packages/pip/_vendor/distro.py", line 681, in linux_distribution
self.version(),
File "/usr/local/lib/python3.7/site-packages/pip/_vendor/distro.py", line 741, in version
self.lsb_release_attr('release'),
File "/usr/local/lib/python3.7/site-packages/pip/_vendor/distro.py", line 903, in lsb_release_attr
return self._lsb_release_info.get(attribute, '')
File "/usr/local/lib/python3.7/site-packages/pip/_vendor/distro.py", line 556, in __get__
ret = obj.__dict__[self._fname] = self._f(obj)
File "/usr/local/lib/python3.7/site-packages/pip/_vendor/distro.py", line 1014, in _lsb_release_info
stdout = subprocess.check_output(cmd, stderr=devnull)
File "/usr/local/lib/python3.7/subprocess.py", line 411, in check_output
**kwargs).stdout
File "/usr/local/lib/python3.7/subprocess.py", line 512, in run
output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '('lsb_release', '-a')' returned non-zero exit status 1.
pi@bpi-iot-ros-ai:/usr/bin$
如何处理？
答案1
看起来lsb_release缺少命令，您可以使用以下命令安装它apt：
sudo apt install lsb-release
答案2
谢谢 Didier！下面有一个解决方案链接您提供的。所以基本上我有 Python 2.7；3.5 和 3.7。我的解决方案与 Jerry Isdale 的相同：
在安装 python3.7.3 并更改 python3 的符号链接以指向它之后，我遇到了这个错误。通过将第一行更改为
!/usr/bin/python3.5 -Es原文几乎就是这样...只需添加“.5”。
就这样完成了：
$ sudo nano /usr/bin/lsb_release
并将第一行改为：
#!/usr/bin/python3.5 -Es
这次一切sudo pip3 install virtualenv顺利:)