无法使用Jython Jar执行-m ensurepip命令的问题求助

DevOps 小满

2026-6-29

Jython执行ensurepip命令报错及解决方法

无法执行以下命令：

java -jar ~/.m2/repository/org/python/jython-standalone/2.7.0/jython-standalone-2.7.0.jar -m ensurepip

执行后出现如下报错堆栈：

Traceback (most recent call last):
  File "/Users/***/.m2/repository/org/python/jython-standalone/2.7.0/jython-standalone-2.7.0.jar/Lib/runpy.py", line 161, in _run_module_as_main
  File "/Users/***/.m2/repository/org/python/jython-standalone/2.7.0/jython-standalone-2.7.0.jar/Lib/runpy.py", line 72, in _run_code
  File "/Users/***/.m2/repository/org/python/jython-standalone/2.7.0/jython-standalone-2.7.0.jar/Lib/ensurepip/__main__.py", line 4, in <module>
  File "/Users/***/.m2/repository/org/python/jython-standalone/2.7.0/jython-standalone-2.7.0.jar/Lib/ensurepip/__init__.py", line 220, in _main
  File "/Users/***/.m2/repository/org/python/jython-standalone/2.7.0/jython-standalone-2.7.0.jar/Lib/ensurepip/__init__.py", line 123, in bootstrap
  File "/Users/***/.m2/repository/org/python/jython-standalone/2.7.0/jython-standalone-2.7.0.jar/Lib/ensurepip/__init__.py", line 45, in _run_pip
  File "/var/folders/96/llwnx0n57vd17gtfyw124z500000gq/T/tmpARwn47/pip-1.6-py2.py3-none-any.whl/pip/__init__.py", line 10, in <module>
  File "/var/folders/96/llwnx0n57vd17gtfyw124z500000gq/T/tmpARwn47/pip-1.6-py2.py3-none-any.whl/pip/util.py", line 13, in <module>
  File "/var/folders/96/llwnx0n57vd17gtfyw124z500000gq/T/tmpARwn47/pip-1.6-py2.py3-none-any.whl/pip/backwardcompat/__init__.py", line 115, in <module>
  File "/Users/***/.m2/repository/org/python/jython-standalone/2.7.0/jython-standalone-2.7.0.jar/Lib/distutils/sysconfig.py", line 28, in <module>
  File "/Users/***/.m2/repository/org/python/jython-standalone/2.7.0/jython-standalone-2.7.0.jar/Lib/posixpath.py", line 367, in realpath
  File "/Users/***/.m2/repository/org/python/jython-standalone/2.7.0/jython-standalone-2.7.0.jar/Lib/posixpath.py", line 373, in _joinrealpath
  File "/Users/***/.m2/repository/org/python/jython-standalone/2.7.0/jython-standalone-2.7.0.jar/Lib/posixpath.py", line 61, in isabs
AttributeError: 'NoneType' object has no attribute 'startswith'

已搜索该错误相关内容，找到的相关帖子未能解决问题。

解决方案

将Jython独立JAR包升级至2.7.3版本，即可正常运行上述ensurepip初始化命令。

内容的提问来源于stack exchange，提问作者T V Padmanabhan