python - Pip default behavior conflicts with virtualenv? -

-

i following tutorial http://blog.miguelgrinberg.com/post/the-flask-mega-tutorial-part-i-hello-world/page/5

when got virtualenv flask command, received error message:

can not perform '--user' install. user site-packages not visible in virtualenv.

this makes sense point of virtualenv create new environment can control, , --user command places in specific location, defeating objective of separation of dev environment.

it seems pip defaults --user installations though, can change default behavior? and, better, can pip play nice virtualenv @ times?

to clarify, here terminal looks like.

melchior:miguelgrinberg-microblog megablanc$ virtualenv flask new python executable in flask/bin/python installing setuptools, pip, wheel...   complete output command /users/megablanc/dev...log/flask/bin/python -c "import sys, pip; sys...d\"] + sys.argv[1:]))" setuptools pip wheel:   can not perform '--user' install. user site-packages not visible in virtualenv. ---------------------------------------- ...installing setuptools, pip, wheel...done. traceback (most recent call last):   file "/users/megablanc/library/python/2.7/bin/virtualenv", line 11, in <module>     sys.exit(main())   file "/users/megablanc/library/python/2.7/lib/python/site-packages/virtualenv.py", line 832, in main     symlink=options.symlink)   file "/users/megablanc/library/python/2.7/lib/python/site-packages/virtualenv.py", line 1004, in create_environment     install_wheel(to_install, py_executable, search_dirs)   file "/users/megablanc/library/python/2.7/lib/python/site-packages/virtualenv.py", line 969, in install_wheel     'pip_no_index': '1'   file "/users/megablanc/library/python/2.7/lib/python/site-packages/virtualenv.py", line 910, in call_subprocess     % (cmd_desc, proc.returncode)) oserror: command /users/megablanc/dev...log/flask/bin/python -c "import sys, pip; sys...d\"] + sys.argv[1:]))" setuptools pip wheel failed error code 1

you don't need set --user flag. after create virtualenv (virtualenv flask), activate it: source flask/bin/activate. shell should (flask) ~>.

once virtualenv activated, should able pip install packages without issue. example, pip install numpy. they'll installed in: lib/python2.6/site-packages/ (for whatever version of python using)


Comments

Post a Comment

Popular posts from this blog

python - TypeError: start must be a integer -

-
i trying draw 5 turtles, getting typeerror on line 25. here code: import turtle wn = turtle.screen() redrose = turtle.turtle() color = input("what background color be?") fillcolor_f = input("what color of rose be?") redrose.hideturtle() redrose.speed(30) redrose.penup() redrose.left(180) redrose.forward(175) redrose.right(90) redrose.forward(30) redrose.right(90) redrose.pendown() def drawrose(red): redrose.color("pink") redrose.fillcolor(fillcolor_f) redrose.fill(true) in range(red): redrose.forward(i) redrose.right(49) in range(5): drawrose(redrose) redrose.penup() redrose.forward(350) redrose.right(144) redrose.pendown() redrose.fill(false) drawrose(50) wn.bgcolor(color) i trying draw 5 roses, produces errors. doing in interactivepython.org. you recursively calling drawrose wrong parameter. on line 23 ( for in range(red): ) expect red integer...
Read more

c# - DevExpress RepositoryItemComboBox BackColor property ignored -

-
i have following code almost works properly; private void cbstatus_drawitem(object sender, listboxdrawitemeventargs e) { string item = e.item string; if (item != null) { switch (item) { case "1": e.appearance.forecolor = color.green; e.appearance.backcolor = color.green; break; case "2": e.appearance.forecolor = color.orange; e.appearance.backcolor = color.orange; break; case "3": e.appearance.forecolor = color.red; e.appearance.backcolor = color.red; break; } } } when dropdown shown, items forecolor correct, backcolor remains whatever backcolor of theme is; i.e. if i've got set dark theme, backcolor dark, cells in gridview, rather being green/orange/red. i've tried setting e.appearance.options.usebackcolor trying set e....
Read more

django - Creating multiple model instances in DRF3 -

-
1) create multiple model instances 1 api call, asked here: how create multiple model instances django rest framework? tried solution named in link, no success. i trying upload multiple files in 1 api call. result: files uploaded (only once overwrote perform_create) 1 instance created (if send 2 files, latter created instance). my code: class fileuploadserializer(serializers.modelserializer): def __init__(self, *args, **kwargs): many = kwargs.pop('many', true) super(fileuploadserializer, self).__init__(many=many, *args, **kwargs) class meta: model = fileupload read_only_fields = ('created', 'datafile', 'owner') class fileuploadviewset(viewsets.modelviewset): queryset = fileupload.objects.all() serializer_class = fileuploadserializer parser_classes = (multipartparser, formparser, ) def perform_create(self, serializer): file_list = self.request.data.getlist('file') ...
Read more