我在Docker中安装pipenv：

RUN pip install pipenv

RUN cd /my/app/path/ && pipenv install

RUN cd /my/app/path/ && pipenv shell

我收到错误：

Traceback (most recent call last):

File "/usr/local/bin/pipenv", line 11, in

sys.exit(cli())

File "/usr/local/lib/python2.7/dist-packages/pipenv/vendor/click/core.py", line 722, in __call__

return self.main(*args, **kwargs)

File "/usr/local/lib/python2.7/dist-packages/pipenv/vendor/click/core.py", line 697, in main

rv = self.invoke(ctx)

File "/usr/local/lib/python2.7/dist-packages/pipenv/vendor/click/core.py", line 1066, in invoke

return _process_result(sub_ctx.command.invoke(sub_ctx))

File "/usr/local/lib/python2.7/dist-packages/pipenv/vendor/click/core.py", line 895, in invoke

return ctx.invoke(self.callback, **ctx.params)

File "/usr/local/lib/python2.7/dist-packages/pipenv/vendor/click/core.py", line 535, in invoke

return callback(*args, **kwargs)

File "/usr/local/lib/python2.7/dist-packages/pipenv/cli.py", line 2057, in shell

do_shell(three=three, python=python, fancy=fancy, shell_args=shell_args)

File "/usr/local/lib/python2.7/dist-packages/pipenv/cli.py", line 1952, in do_shell

shell = os.path.abspath(PIPENV_SHELL)

File "/usr/lib/python2.7/posixpath.py", line 360, in abspath

if not isabs(path):

File "/usr/lib/python2.7/posixpath.py", line 54, in isabs

return s.startswith('/')

AttributeError: 'NoneType' object has no attribute 'startswith'

如果我跑步

RUN cd /my/app/path/ && pipenv install --system

相反，即时通讯收到另一个错误：

build 30-Sep-2017 16:50:45 Step 5/9 : RUN cd /my/app/path && pipenv install --system

build 30-Sep-2017 16:50:45 ---> Running in cffd31633074

build 30-Sep-2017 16:50:46 [91mPipfile.lock not found, creating…

build 30-Sep-2017 16:50:46 [0m[91mLocking [dev-packages] dependencies…

build 30-Sep-2017 16:50:46 [0m[91mLocking [packages] dependencies…

build 30-Sep-2017 16:50:49 [0m[91mCRITICAL:pip.utils:Error [Errno 2] No such file or directory while executing command python setup.py egg_info

build 30-Sep-2017 16:50:49 [0m[91mTraceback (most recent call last):

build 30-Sep-2017 16:50:49 File "/usr/local/bin/pipenv", line 11, in

build 30-Sep-2017 16:50:49 sys.exit(cli())

build 30-Sep-2017 16:50:49 File "/usr/local/lib/python2.7/dist-packages/pipenv/vendor/click/core.py", line 722, in __call__

build 30-Sep-2017 16:50:49 [0m[91m return self.main(*args, **kwargs)

build 30-Sep-2017 16:50:49 File "/usr/local/lib/python2.7/dist-packages/pipenv/vendor/click/core.py", line 697, in main

build 30-Sep-2017 16:50:49 [0m[91m rv = self.invoke(ctx)

build 30-Sep-2017 16:50:49 File "/usr/local/lib/python2.7/dist-packages/pipenv/vendor/click/core.py", line 1066, in invoke

build 30-Sep-2017 16:50:49 [0m[91m return _process_result(sub_ctx.command.invoke(sub_ctx))

build 30-Sep-2017 16:50:49 File "/usr/local/lib/python2.7/dist-packages/pipenv/vendor/click/core.py", line 895, in invoke

build 30-Sep-2017 16:50:49 [0m[91m return ctx.invoke(self.callback, **ctx.params)

build 30-Sep-2017 16:50:49 File "/usr/local/lib/python2.7/dist-packages/pipenv/vendor/click/core.py", line 535, in invoke

build 30-Sep-2017 16:50:49 return callback(*args, **kwargs)

build 30-Sep-2017 16:50:49 File "/usr/local/lib/python2.7/dist-packages/pipenv/cli.py", line 1782, in install

build 30-Sep-2017 16:50:49 [0m[91m do_init(dev=dev, allow_global=system, ignore_pipfile=ignore_pipfile, system=system, skip_lock=skip_lock, verbose=verbose, concurrent=concurrent, deploy=deploy)

build 30-Sep-2017 16:50:49 File "/usr/local/lib/python2.7/dist-packages/pipenv/cli.py", line 1290, in do_init

build 30-Sep-2017 16:50:49 [0m[91m do_lock(system=system)

build 30-Sep-2017 16:50:49 File "/usr/local/lib/python2.7/dist-packages/pipenv/cli.py", line 1080, in do_lock

build 30-Sep-2017 16:50:49 [0m[91m pre=pre

build 30-Sep-2017 16:50:49 File "/usr/local/lib/python2.7/dist-packages/pipenv/utils.py", line 421, in resolve_deps

build 30-Sep-2017 16:50:49 [0m[91m resolved_tree.update(resolver.resolve())

build 30-Sep-2017 16:50:49 File "/usr/local/lib/python2.7/dist-packages/pipenv/patched/piptools/resolver.py", line 101, in resolve

build 30-Sep-2017 16:50:49 [0m[91m has_changed, best_matches = self._resolve_one_round()

build 30-Sep-2017 16:50:49 File "/usr/local/lib/python2.7/dist-packages/pipenv/patched/piptools/resolver.py", line 199, in _resolve_one_round

build 30-Sep-2017 16:50:49 [0m[91m for dep in self._iter_dependencies(best_match):

build 30-Sep-2017 16:50:49 File "/usr/local/lib/python2.7/dist-packages/pipenv/patched/piptools/resolver.py", line 293, in _iter_dependencies

build 30-Sep-2017 16:50:49 dependencies = self.repository.get_dependencies(ireq)

build 30-Sep-2017 16:50:49 File "/usr/local/lib/python2.7/dist-packages/pipenv/patched/piptools/repositories/pypi.py", line 171, in get_dependencies

build 30-Sep-2017 16:50:49 result = reqset._prepare_file(self.finder, ireq)

build 30-Sep-2017 16:50:49 File "/usr/local/lib/python2.7/dist-packages/pipenv/patched/pip/req/req_set.py", line 639, in _prepare_file

build 30-Sep-2017 16:50:49 [0m[91m abstract_dist.prep_for_dist()

build 30-Sep-2017 16:50:49 File "/usr/local/lib/python2.7/dist-packages/pipenv/patched/pip/req/req_set.py", line 134, in prep_for_dist

build 30-Sep-2017 16:50:49 [0m[91m self.req_to_install.run_egg_info()

build 30-Sep-2017 16:50:49 File "/usr/local/lib/python2.7/dist-packages/pipenv/patched/pip/req/req_install.py", line 438, in run_egg_info

build 30-Sep-2017 16:50:49 [0m[91m command_desc='python setup.py egg_info')

build 30-Sep-2017 16:50:49 File "/usr/local/lib/python2.7/dist-packages/pipenv/patched/pip/utils/__init__.py", line 667, in call_subprocess

build 30-Sep-2017 16:50:49 [0m[91m cwd=cwd, env=env)

build 30-Sep-2017 16:50:49 File "/usr/lib/python2.7/subprocess.py", line 711, in __init__

build 30-Sep-2017 16:50:49 [0m[91m errread, errwrite)

build 30-Sep-2017 16:50:49 File "/usr/lib/python2.7/subprocess.py", line 1343, in _execute_child

build 30-Sep-2017 16:50:49 [0m[91m raise child_exception

build 30-Sep-2017 16:50:49 OSError: [Errno 2] No such file or directory

error 30-Sep-2017 16:50:49 The command '/bin/sh -c cd /opt/supercrunch/function-service/lib && pipenv install --system' returned a non-zero code: 1

build 30-Sep-2017 16:50:49 [0mSending build context to Docker daemon 40.96 kB

但是当我改为执行以下操作时：

RUN pip install pipenv

RUN cd /my/app/path && pipenv install

RUN cd /my/app/path && pipenv install --system

这是工作…

于是两个问题：第一：为什么pipenv shell给我这个错误，第二：为什么我必须做pipenv install之前pipenv install

--system得到它的工作？

我想使用pipenv创建具有不同python版本和不同依赖版本的虚拟环境。