pip install requirements.txt與AssertionError失敗：Egg-link與安裝位置不匹配

Question

我正在研究一個既是庫又是應用程序的Python/C++項目。我具有運行

$ pip install -r requirements.txt 

問題兩次給了我下面的錯誤（這是第二次運行）：

$ pip install -r requirements.txt 
Obtaining file:///Users/aaragon/Local/myproject (from -r requirements.txt (line 3)) 
Requirement already satisfied: numpy in /Users/aaragon/.virtualenvs/test/lib/python3.5/site-packages (from myproject ==0.21.0->-r requirements.txt (line 3)) 
Requirement already satisfied: scipy in /Users/aaragon/.virtualenvs/test/lib/python3.5/site-packages (from myproject ==0.21.0->-r requirements.txt (line 3)) 
Requirement already satisfied: Sphinx in /Users/aaragon/.virtualenvs/test/lib/python3.5/site-packages (from myproject ==0.21.0->-r requirements.txt (line 3)) 
Requirement already satisfied: pytest in /Users/aaragon/.virtualenvs/test/lib/python3.5/site-packages (from myproject ==0.21.0->-r requirements.txt (line 3)) 
Requirement already satisfied: matplotlib in /Users/aaragon/.virtualenvs/test/lib/python3.5/site-packages (from myproject ==0.21.0->-r requirements.txt (line 3)) 
Requirement already satisfied: dill in /Users/aaragon/.virtualenvs/test/lib/python3.5/site-packages (from myproject ==0.21.0->-r requirements.txt (line 3)) 
Requirement already satisfied: alabaster<0.8,>=0.7 in /Users/aaragon/.virtualenvs/test/lib/python3.5/site-packages (from Sphinx-> myproject ==0.21.0->-r requirements.txt (line 3)) 
Requirement already satisfied: setuptools in /Users/aaragon/.virtualenvs/test/lib/python3.5/site-packages (from Sphinx-> myproject ==0.21.0->-r requirements.txt (line 3)) 
Requirement already satisfied: docutils>=0.11 in /Users/aaragon/.virtualenvs/test/lib/python3.5/site-packages (from Sphinx-> myproject ==0.21.0->-r requirements.txt (line 3)) 
Requirement already satisfied: snowballstemmer>=1.1 in /Users/aaragon/.virtualenvs/test/lib/python3.5/site-packages (from Sphinx-> myproject ==0.21.0->-r requirements.txt (line 3)) 
Requirement already satisfied: six>=1.5 in /Users/aaragon/.virtualenvs/test/lib/python3.5/site-packages (from Sphinx-> myproject ==0.21.0->-r requirements.txt (line 3)) 
Requirement already satisfied: babel!=2.0,>=1.3 in /Users/aaragon/.virtualenvs/test/lib/python3.5/site-packages (from Sphinx-> myproject ==0.21.0->-r requirements.txt (line 3)) 
Requirement already satisfied: Pygments>=2.0 in /Users/aaragon/.virtualenvs/test/lib/python3.5/site-packages (from Sphinx-> myproject ==0.21.0->-r requirements.txt (line 3)) 
Requirement already satisfied: requests>=2.0.0 in /Users/aaragon/.virtualenvs/test/lib/python3.5/site-packages (from Sphinx-> myproject ==0.21.0->-r requirements.txt (line 3)) 
Requirement already satisfied: sphinxcontrib-websupport in /Users/aaragon/.virtualenvs/test/lib/python3.5/site-packages (from Sphinx-> myproject ==0.21.0->-r requirements.txt (line 3)) 
Requirement already satisfied: Jinja2>=2.3 in /Users/aaragon/.virtualenvs/test/lib/python3.5/site-packages (from Sphinx-> myproject ==0.21.0->-r requirements.txt (line 3)) 
Requirement already satisfied: imagesize in /Users/aaragon/.virtualenvs/test/lib/python3.5/site-packages (from Sphinx-> myproject ==0.21.0->-r requirements.txt (line 3)) 
Requirement already satisfied: py>=1.4.33 in /Users/aaragon/.virtualenvs/test/lib/python3.5/site-packages (from pytest-> myproject ==0.21.0->-r requirements.txt (line 3)) 
Requirement already satisfied: pytz in /Users/aaragon/.virtualenvs/test/lib/python3.5/site-packages (from matplotlib-> myproject ==0.21.0->-r requirements.txt (line 3)) 
Requirement already satisfied: python-dateutil>=2.0 in /Users/aaragon/.virtualenvs/test/lib/python3.5/site-packages (from matplotlib-> myproject ==0.21.0->-r requirements.txt (line 3)) 
Requirement already satisfied: cycler>=0.10 in /Users/aaragon/.virtualenvs/test/lib/python3.5/site-packages (from matplotlib-> myproject ==0.21.0->-r requirements.txt (line 3)) 
Requirement already satisfied: pyparsing!=2.0.4,!=2.1.2,!=2.1.6,>=2.0.1 in /Users/aaragon/.virtualenvs/test/lib/python3.5/site-packages (from matplotlib-> myproject ==0.21.0->-r requirements.txt (line 3)) 
Requirement already satisfied: urllib3<1.23,>=1.21.1 in /Users/aaragon/.virtualenvs/test/lib/python3.5/site-packages (from requests>=2.0.0->Sphinx-> myproject ==0.21.0->-r requirements.txt (line 3)) 
Requirement already satisfied: certifi>=2017.4.17 in /Users/aaragon/.virtualenvs/test/lib/python3.5/site-packages (from requests>=2.0.0->Sphinx-> myproject ==0.21.0->-r requirements.txt (line 3)) 
Requirement already satisfied: idna<2.7,>=2.5 in /Users/aaragon/.virtualenvs/test/lib/python3.5/site-packages (from requests>=2.0.0->Sphinx-> myproject ==0.21.0->-r requirements.txt (line 3)) 
Requirement already satisfied: chardet<3.1.0,>=3.0.2 in /Users/aaragon/.virtualenvs/test/lib/python3.5/site-packages (from requests>=2.0.0->Sphinx-> myproject ==0.21.0->-r requirements.txt (line 3)) 
Requirement already satisfied: MarkupSafe>=0.23 in /Users/aaragon/.virtualenvs/test/lib/python3.5/site-packages (from Jinja2>=2.3->Sphinx-> myproject ==0.21.0->-r requirements.txt (line 3)) 
Installing collected packages: myproject 
    Found existing installation: myproject 0.21.0 
Exception: 
Traceback (most recent call last): 
    File "/Users/aaragon/.virtualenvs/test/lib/python3.5/site-packages/pip/basecommand.py", line 215, in main 
status = self.run(options, args) 
    File "/Users/aaragon/.virtualenvs/test/lib/python3.5/site-packages/pip/commands/install.py", line 342, in run 
prefix=options.prefix_path, 
    File "/Users/aaragon/.virtualenvs/test/lib/python3.5/site-packages/pip/req/req_set.py", line 778, in install 
requirement.uninstall(auto_confirm=True) 
    File "/Users/aaragon/.virtualenvs/test/lib/python3.5/site-packages/pip/req/req_install.py", line 703, in uninstall 
'(at %s)' % (link_pointer, self.name, dist.location) 
AssertionError: Egg-link /Users/aaragon/Local/myproject does not match installed location of myproject (at /Users/aaragon/Local/myproject/src) 

我需要運行它多次可能的，因爲pip install會成爲Makefile的一部分或者緩解應用程序最終用戶的生活。 我發現只有one post與此問題，但沒有解決方案的路徑。

Answer 1

這是發生在我身上的，因爲在錯誤的地方有一個myProject.egg-info文件夾，Pip在嘗試卸載它時似乎崩潰了。我刪除了這個，reran pip install -r requirements.txt，並且該文件夾被安裝到指定的正確位置。