python -v 不仅显示版本，还显示大量文本[重复]

Question

我一直在尝试安装虚拟环境，现在在尝试检查我安装的 python 版本时得到了奇怪的反馈。但是 python 3. 代码仍然运行。

有谁知道这里的问题是什么？

tobi@derGeraet:~/Dokumente$ python -v
# installing zipimport hook
import zipimport # builtin
# installed zipimport hook
# /usr/lib/python2.7/site.pyc matches /usr/lib/python2.7/site.py
import site # precompiled from /usr/lib/python2.7/site.pyc
# /usr/lib/python2.7/os.pyc matches /usr/lib/python2.7/os.py
import os # precompiled from /usr/lib/python2.7/os.pyc
import errno # builtin
import posix # builtin
# /usr/lib/python2.7/posixpath.pyc matches /usr/lib/python2.7/posixpath.py
import posixpath # precompiled from /usr/lib/python2.7/posixpath.pyc
# /usr/lib/python2.7/stat.pyc matches /usr/lib/python2.7/stat.py
import stat # precompiled from /usr/lib/python2.7/stat.pyc
<<<<<<<<<<<<<<<<<<A lot more import statements in between>>>>>>>>>>>>>>>>>>>>
import encodings.aliases # precompiled from /usr/lib/python2.7/encodings/aliases.pyc
# /usr/lib/python2.7/encodings/utf_8.pyc matches /usr/lib/python2.7/encodings/utf_8.py
import encodings.utf_8 # precompiled from /usr/lib/python2.7/encodings/utf_8.pyc
Python 2.7.15rc1 (default, Nov 12 2018, 14:31:15) 
[GCC 7.3.0] on linux2
Type "help", "copyright", "credits" or "license" for more information.
dlopen("/usr/lib/python2.7/lib-dynload/readline.x86_64-linux-gnu.so", 2);
import readline # dynamically loaded from /usr/lib/python2.7/lib-dynload/readline.x86_64-linux-gnu.so

Answer 1

运行python -V获取python版本
来自python --help

-v     : verbose (trace import statements); also PYTHONVERBOSE=x
         can be supplied multiple times to increase verbosity
-V     : print the Python version number and exit (also --version)

Answer 2

不需要花哨。始终保持安全：

$ python --version