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I setup virutalenv in home directory and mentioned the same in web tab. I can my app from console. but not through wsgi

Here is traceback

2016-03-26 15:13:04,391 :Traceback (most recent call last):
2016-03-26 15:13:04,391 :  File "/bin/user_wsgi_wrapper.py", line 138, in __call__
2016-03-26 15:13:04,392 :    self.error_log_file.logger.exception("Error running WSGI application")
2016-03-26 15:13:04,392 :  File "/usr/lib/python2.7/logging/__init__.py", line 1185, in exception
2016-03-26 15:13:04,392 :    self.error(msg, *args, **kwargs)
2016-03-26 15:13:04,392 :  File "/usr/lib/python2.7/logging/__init__.py", line 1178, in error
2016-03-26 15:13:04,392 :    self._log(ERROR, msg, args, **kwargs)
2016-03-26 15:13:04,392 :  File "/usr/lib/python2.7/logging/__init__.py", line 1270, in _log
2016-03-26 15:13:04,393 :    record = self.makeRecord(self.name, level, fn, lno, msg, args, exc_info, func, extra)
2016-03-26 15:13:04,393 :  File "/usr/lib/python2.7/logging/__init__.py", line 1244, in makeRecord
2016-03-26 15:13:04,393 :    rv = LogRecord(name, level, fn, lno, msg, args, exc_info, func)
2016-03-26 15:13:04,393 :  File "/usr/lib/python2.7/logging/__init__.py", line 284, in __init__
2016-03-26 15:13:04,393 :    self.threadName = threading.current_thread().name
2016-03-26 15:13:04,393 :  File "/usr/lib/python2.7/threading.py", line 1160, in currentThread
2016-03-26 15:13:04,394 :    return _active[_get_ident()]
2016-03-26 15:13:04,394 :  File "/bin/user_wsgi_wrapper.py", line 130, in __call__
2016-03-26 15:13:04,394 :    app_iterator = self.app(environ, start_response)
2016-03-26 15:13:04,394 :  File "/bin/user_wsgi_wrapper.py", line 144, in import_error_application
2016-03-26 15:13:04,394 :    raise e
2016-03-26 15:13:04,394 :ImportError: No module named flask

[edit by admin: formatting]

from the console, were you "running" your app within your virtualenv?

if not, you may have just seen your webapp work with our pre-installed flask.

if you are using your own virtualenv, make sure you install flask into it.

Yes,from console I started app in virtualenv only.

today when I tried to start app from console following error occured

Traceback (most recent call last):
  File "run.py", line 5, in <module>
    app.run(host= '0.0.0.0')
  File "/home/neerdshukla/.local/lib/python2.7/site-packages/flask/app.py", line 772, in run
    run_simple(host, port, self, **options)
  File "/usr/local/lib/python2.7/dist-packages/werkzeug/serving.py", line 613, in run_simple
    test_socket.bind((hostname, port))
  File "/usr/lib/python2.7/socket.py"




    
, line 224, in meth
    return getattr(self._sock,name)(*args)
socket.error: [Errno 98] Address already in use

[edit by admin: formatting]

thats not running from the virtualenv. its using a user local version of flask as you can see from the stacktrace.

also just to clarify, you can't run webapps from the console- it will run but we will never route any requests to it. so nobody will ever be able to access it

make sure you are in your virtualenv and that you pip install into the virtualenv.

I started in console virtualenv and ran command "pip freeze --user" and got following output

(lared) 08:43 ~/lared$ pip freeze --user
-f /usr/share/pip-wheels
Flask==0.10.1
itsdangerous==0.24
passlib==1.6.5
poster==0.8.1
pydns==2.3.6
pymongo==3.2
redis==2.10.5
Unirest==1.1.7
validate-email==1.3

Output indiicates that flask is installed in virtualenv

For testing setup onlny I run app from console.

[edit by admin: formatting]

That's not showing what's installed in the virtualenv, the --user flag means that it's showing what's installed locally for your username (which is ignored when you're in the virtualenv).

For clarity: there are two options to install packages:

  • pip install --user, which installs things in the .local subdirectory of your home directory.
  • using a virtualenv, when you either use workon to enter the virtualenv, or you start a bash console inside the virtualenv from the "Web" tab. In this case, you should use pip install without the --user flag.
  • So, if from a bash console inside your virtualenv you run pip freeze with no --user flag, then you'll see what's in the virtualenv. I suspect that Flask won't be there, so you'll need to run pip install Flask==0.10.1 to install it.

    I ran "pip install" got following output

    (lared) 16:39 ~/lared$ pip freeze
    -f /usr/share/pip-wheels
    aggdraw==1.1.post20051010
    alabaster==0.7.7
    alembic==0.6.2
    aniso8601==0.92
    ansible==1.5.4
    argh==0.26.1
    async==0.6.1
    Augustus==0.5.3.0
    Babel==0.9.6
    backports-abc==0.4
    backports.ssl-match-hostname==3.5.0.1
    basemap==1.0.7
    bashplotlib==0.4.4
    beanstalkc==0.3.0
    BeautifulSoup==3.2.1
    beautifulsoup4==4.2.1
    biopython==1.61
    bleach==1.2.2
    blessings==1.6
    blinker==1.2
    boto==2.3.0
    bottle==0.11.6
    bottlenose==0.6.2
    bpython==0.14.2
    BTrees==4.0.8
    bzr==2.6.0
    cairocffi==0.5.3
    CairoSVG==1.0.6
    census==0.6
    certifi==2016.2.28
    cffi==1.5.0
    Chameleon==2.11
    chardet==2.2.1
    Cheetah==2.4.4
    CherryPy==3.2.4
    colorama==0.3.7
    configobj==4.7.2
    CoolProp==5.0.3
    coverage==3.6
    cssselect==0.8
    curtsies==0.1.23
    cvxopt==1.1.6
    cypari==1.2.2
    Cython==0.23.4
    dataset==0.4.0
    decorator==3.4.0
    Django==1.3.7
    django-blog-zinnia==0.12.3
    django-bootstrap-form==3.1
    django-classy-tags==0.4
    django-cms==2.4.2
    django-mptt==0.5.5
    django-openid-auth==0.5
    django-registration==0.8
    django-sekizai==0.7
    django-social-auth==0.7.23
    django-tagging==0.3.1
    django-xmlrpc==0.1.5
    django4facebook==0.1.0
    docopt==0.6.1
    docutils==0.10
    dropbox==1.5.1
    dulwich==0.9.4
    easydev==0.9.14
    EasyProcess==0.1.6
    epydoc==3.0.1
    evernote==1.25.1
    Fabric==1.6.1
    facebook-sdk==0.4.0
    falcon==0.1.10
    feedgenerator==1.6
    feedparser==5.1.3
    filebrowser-safe==0.2.27
    Fiona==0.15
    Flask==0.10.1
    Flask-Admin==1.0.9
    Flask-Babel==0.8
    Flask-Bcrypt==0.6.0
    Flask-Bootstrap==3.1.1.2
    Flask-HTTPAuth==2.2.0
    Flask-Login==0.1.3
    Flask-Mail==0.8.2
    Flask-OpenID==1.1.1
    Flask-RESTful==0.3.1
    Flask-Script==0.5.3
    Flask-SQLAlchemy==0.16
    Flask-WhooshAlchemy==0.55a0
    Flask-WTF==0.8.3
    funcsigs==0.4
    functools32==3.2.3.post2
    futures==2.1.3
    FXrays==1.3.1
    GDAL==1.9.1
    gdata==2.0.17
    Genshi==0.7
    gensim==0.10.0
    GeoIP==1.2.9
    geopy==0.95.1
    gevent==1.0.1
    geventhttpclient==1.0a0
    gitdb==0.5.4
    GitPython==0.3.2rc1
    gmpy==1.16
    google-api-python-client==1.1
    grappelli-safe==0.2.21
    greenlet==0.4.1
    grequests==0.2.0
    grok==1.11.3
    grokcore.annotation==1.3
    grokcore.catalog==2.0
    grokcore.chameleon==1.0.3
    grokcore.component==2.5
    grokcore.content==1.1
    grokcore.formlib==1.9
    grokcore.json==1.2
    grokcore.layout==1.6
    grokcore.message==0.4.2
    grokcore.rest==1.3
    grokcore.security==1.6.2
    grokcore.site==1.6.1
    grokcore.traverser==1.2
    grokcore.view==2.8
    grokcore.viewlet==1.11
    grokcore.xmlrpc==1.2
    hg-git==0.4.0
    html5lib==0.95
    http-
    
    
    
    
        
    parser==0.8.1
    httplib2==0.8
    IMAPClient==0.10.2
    incf.countryutils==1.0
    iotop==0.6
    ipykernel==4.3.1
    ipyparallel==5.0.1
    ipython==4.1.2
    ipython-genutils==0.1.0
    ipywidgets==4.1.1
    isodate==0.4.9
    itsdangerous==0.24
    jellyfish==0.2.0
    Jinja2==2.7
    jsonschema==2.5.1
    jupyter==1.0.0
    jupyter-client==4.2.1
    jupyter-console==4.1.1
    jupyter-core==4.1.0
    la==0.6.0
    Logbook==0.8.1
    lxml==3.3.5
    Mako==0.8.1
    marisa-trie==0.5.1
    Markdown==2.3.1
    MarkupSafe==0.18
    martian==0.14
    matplotlib==1.4.3
    mechanize==0.2.5
    mercurial==2.6.3
    Mezzanine==1.4.3
    mistune==0.7.2
    mlpy==3.5.0
    mock==1.0.1
    mod-pywebsocket==0.6b1
    moin==1.9.7
    mplh5canvas==0.7
    mpmath==0.17
    mysql-connector-python==1.0.12
    MySQL-python==1.2.5
    nbconvert==4.1.0
    nbformat==4.0.1
    ndg-httpsclient==0.4.0
    netCDF4==1.1.1
    netifaces==0.8
    networkx==1.7
    nltk==3.0.0
    nose==1.3.0
    notebook==4.1.0
    numexpr==2.4
    numpy==1.8.1
    oauth==1.0.1
    oauth2==1.5.211
    oauthlib==1.0.3
    openopt==0.5402
    openpyxl==1.6.2
    Orange==2.7.8
    Orange-Text==1.2a1
    ordereddict==1.1
    oursql==0.9.3.1
    pandas==0.14.1
    paramiko==1.10.1
    passlib==1.6.5
    Paste==1.7.5.1
    PasteDeploy==1.5.0
    path.py==8.1.2
    pathtools==0.1.2
    patsy==0.2.1
    Pattern==2.6
    pbr==0.11.1
    pdflatex==0.1.0
    pdfminer==20110515
    peewee==2.1.2
    pelican==3.5.0
    pep8==1.4.5
    persistent==4.0.6
    pexpect==2.4
    pickleshare==0.6
    PIL==1.1.7
    Pillow==3.1.1
    Pinax==0.9a2
    pisa==3.0.33
    Pivy==0.5.0
    plink==1.8
    plotly==1.9.3
    poster==0.8.1
    pp==1.6.4
    prettytable==0.6.1
    psutil==1.2.1
    psycopg2==2.5
    ptyprocess==0.5.1
    pudb==2013.3.2
    py-bcrypt==0.4
    PyAMF==0.6.1
    pyasn1==0.1.7
    PyChart==1.39
    pycparser==2.14
    pycrypto==2.6
    pycsp==0.9.0
    pycurl==7.19.0
    pyDatalog==0.13.0
    pydns==2.3.6
    pydot==1.0.28
    pydub==0.9.5
    pyenchant==1.6.6
    pyfits==3.1.2
    pyflakes==0.7.2
    pygal==1.2.1
    pygeoip==0.3.2
    Pygments==1.6
    pygraphviz==1.1
    pyhdf==0.8.3
    Pykka==1.1.0
    pymc==2.3.2
    pymongo==3.2
    pyOpenSSL==0.13
    pyparsing==1.5.7
    PyPDF2==1.25.1
    pypdfocr==0.7.4
    Pyphen==0.9.1
    pypng==0.0.18
    pyproj==1.9.3
    pyquery==1.2.4
    pyramid==1.4.2
    PySAL==1.5.0
    pyserial==2.6
    pyspotify==1.11
    PyStemmer==1.3.0
    pytesseract==0.1.5
    python-amazon-simple-product-api==1.5.0
    python-dateutil==2.2
    python-gflags==2.0
    python-inotify==0.5
    python-instagram==0.8.0
    python-ldap==2.4.13
    python-Levenshtein==0.10.2
    python-magic==0.4.3
    python-mcrypt==1.1
    python-mhash==1.4
    python-mimeparse==0.1.4
    python-openid==2.2.5
    python-slugify==0.0.7
    pytz==2015.7
    PyVirtualDisplay==0.1.2
    PyYAML==3.11
    pyzmq==13.1.0
    qrcode==2.7
    qtconsole==4.2.0
    Quandl==2.2
    quantlib==0.1
    QuantLib-Python==1.3
    rdflib==4.0.1
    redis==2.10.5
    remix==2.1.3
    reportlab==2.7
    repoze.lru==0.6
    requests==2.2.0
    requests-cache==0.4.4
    requests-oauthlib==0.6.1
    resolver-test==1.0.1
    restkit==4.2.1
    RestrictedPython==3.6.0
    rpy2==2.5.2
    ruffus==2.5
    s3cmd==1.1.0b3
    scikit-learn==0.14.1
    scikits.statsmodels==0.3.1
    scipy==0.14.0
    Scrapy==0.16.5
    selenium==2.33.0
    setproctitle==1.1.7
    Shapely==1.3.1
    simplegeneric==0.8.1
    SimpleHMMER==0.2.3
    simplejson==3.3.0
    simpy==3.0.5
    singledispatch==3.4.0.3
    six==1.8.0
    smmap==0.8.2
    snappy
    
    
    
    
        
    ==2.3.2
    snowballstemmer==1.2.1
    soaplib==2.0.0b2
    socketpool==0.5.2
    sockjs-tornado==1.0.0
    South==0.8.1
    SPARQLWrapper==1.5.2
    speaklater==1.3
    spectrum==0.5.6
    spherogram==1.4.1
    Sphinx==1.3.1
    sphinx-rtd-theme==0.1.9
    splinter==0.5.2
    SQLAlchemy==0.8.3
    sqlalchemy-migrate==0.8.2
    statsmodels==0.5.0
    stevedore==0.9.1
    stripe==1.12.0
    suds==0.4
    svn==0.3.24
    sympy==0.7.2
    TA-Lib==0.4.8
    tables==3.1.1
    tabulate==0.7.5
    Tempita==0.5.1
    terminado==0.6
    TesseractTrainer==0.1.1
    texcaller==0
    textblob==0.8.4
    tinycss==0.3
    TornadIO2==0.0.3
    tornado==3.0.2
    Trac==1.0.1
    traitlets==4.1.0
    transaction==1.4.1
    translationstring==1.1
    tweepy==3.5.0
    twilio==3.6.13
    Twisted==13.0.0
    twitter==1.14.3
    Unidecode==0.4.13
    Unirest==1.1.7
    unittest2==0.5.1
    urllib3==1.5
    urwid==1.1.1
    us==0.7
    validate-email==1.3
    venusian==1.0a8
    virtualenv==15.0.0
    virtualenv-clone==0.2.6
    virtualenvwrapper==4.7.1
    VTK==5.8.0
    w3lib==1.3
    Wand==0.3.8
    watchdog==0.8.3
    WeasyPrint==0.22
    web.py==0.37
    webapp2==2.5.2
    WebOb==1.2.3
    Werkzeug==0.8.3
    wheezy.caching==0.1.112
    wheezy.core==0.1.136
    wheezy.html==0.1.145
    wheezy.http==0.1.332
    wheezy.routing==0.1.153
    wheezy.security==0.1.61
    wheezy.template==0.1.155
    wheezy.validation==0.1.130
    wheezy.web==0.1.450
    Whoosh==2.4.1
    WTForms==1.0.4
    wxPython==2.8.12.1
    wxPython-common==2.8.12.1
    xlrd==0.9.2
    xlutils==1.6.0
    xlwt==0.7.5
    z3c.autoinclude==0.3.4
    z3c.flashmessage==1.3
    z3c.pt==3.0.0a1
    zbar==0.10
    zc.buildout==2.1.0
    zc.catalog==1.5.1
    zc.lockfile==1.1.0
    ZConfig==3.0.3
    zdaemon==4.0.0
    ZEO==4.0.0b1
    zipline==0.7.0
    ZODB==4.0.0b3
    ZODB3==3.11.0a3
    zope.annotation==4.2.0
    zope.app.appsetup==4.0.0a1
    zope.app.publication==4.0.0a1.dev0
    zope.app.wsgi==4.0.0a4
    zope.authentication==4.1.0
    zope.browser==2.0.2
    zope.browserpage==4.1.0a1
    zope.browserresource==4.0.1
    zope.catalog==4.0.0a1
    zope.component==4.1.0
    zope.configuration==4.0.2
    zope.container==4.0.0a3
    zope.contentprovider==4.0.0a1
    zope.contenttype==4.0.1
    zope.datetime==4.0.0
    zope.deprecation==4.0.2
    zope.dottedname==4.0.1
    zope.error==4.1.0
    zope.errorview==0.11
    zope.event==4.0.2
    zope.exceptions==4.0.6
    zope.filerepresentation==4.0.2
    zope.formlib==4.3.0a1
    zope.i18n==4.0.0a4
    zope.i18nmessageid==4.0.2
    zope.index==4.0.1
    zope.interface==4.0.1
    zope.intid==4.0.0a1
    zope.keyreference==4.0.0a2
    zope.lifecycleevent==4.0.2
    zope.location==4.0.2
    zope.login==2.0.0a1
    zope.minmax==2.0.0
    zope.pagetemplate==4.0.4
    zope.password==4.0.2
    zope.principalregistry==4.0.0a2
    zope.processlifetime==2.0.0
    zope.proxy==4.1.3
    zope.ptresource==4.0.0a1
    zope.publisher==4.0.0a4
    zope.schema==4.3.2
    zope.security==4.0.0b1
    zope.securitypolicy==4.0.0a1
    zope.session==4.0.0a1
    zope.site==4.0.0a1
    zope.size==4.0.1
    zope.tal==4.0.0a1
    zope.tales==4.0.1
    zope.testing==4.1.2
    zope.traversing==4.0.0a3
    zope.viewlet==4.0.0a1
    

    Flask is installed here as well.

    [edit by admin: formatting]

    I removed virutualev directory and recreated and ran pip install -r requirements.txt again. Issue resolved. Thanks for help. Now pip freeze is showing only

    (lared) 17:00 ~$ pip freeze
    -f /usr/share/pip-wheels
    Flask==0.10.1
    itsdangerous==0.24
    Jinja2==2.8
    MarkupSafe==0.23
    passlib==1.6.5
    pydns==2.3.6
    pymongo==3.2
    redis==2.10.5
    validate-email==1.3
    Werkzeug==0.11.5
    

    Issue is resolved. But wanna ask one question. How can I remove these unwanted packages (mentioned in previous post) from local installation ?

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