CODEWITHSUNDEEP
pythonplotly-dash
Soubhik Banerjee
Soubhik Banerjee

Reputation: 441

ImportError: No module named dash

I am unable to install dash in production server. In local, I have imported by 

pip install dash==0.29.0

But in prod it is not working. When i am using 

sudo apt-get install python dash

its showing 

> "dash is already the newest version (0.5.8-2.4)"

, however while using import dash am getting 

> "ImportError: No module named dash"

have also tried

sudo pip install python dash==0.29.0

but it gives below error:

Requirement already satisfied: python in /usr/lib/python2.7/lib-dynload
Collecting dash==0.29.0
Exception:
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/pip/basecommand.py", line 215, in main
    status = self.run(options, args)
  File "/usr/lib/python2.7/dist-packages/pip/commands/install.py", line 353, in run
    wb.build(autobuilding=True)
  File "/usr/lib/python2.7/dist-packages/pip/wheel.py", line 749, in build
    self.requirement_set.prepare_files(self.finder)
  File "/usr/lib/python2.7/dist-packages/pip/req/req_set.py", line 380, in prepare_files
    ignore_dependencies=self.ignore_dependencies))
  File "/usr/lib/python2.7/dist-packages/pip/req/req_set.py", line 554, in _prepare_file
    require_hashes
  File "/usr/lib/python2.7/dist-packages/pip/req/req_install.py", line 278, in populate_link
    self.link = finder.find_requirement(self, upgrade)
  File "/usr/lib/python2.7/dist-packages/pip/index.py", line 465, in find_requirement
    all_candidates = self.find_all_candidates(req.name)
  File "/usr/lib/python2.7/dist-packages/pip/index.py", line 423, in find_all_candidates
    for page in self._get_pages(url_locations, project_name):
  File "/usr/lib/python2.7/dist-packages/pip/index.py", line 568, in _get_pages
    page = self._get_page(location)
  File "/usr/lib/python2.7/dist-packages/pip/index.py", line 683, in _get_page
    return HTMLPage.get_page(link, session=self.session)
  File "/usr/lib/python2.7/dist-packages/pip/index.py", line 792, in get_page
    "Cache-Control": "max-age=600",
  File "/usr/share/python-wheels/requests-2.12.4-py2.py3-none-any.whl/requests/sessions.py", line 501, in get
    return self.request('GET', url, **kwargs)
  File "/usr/lib/python2.7/dist-packages/pip/download.py", line 386, in request
    return super(PipSession, self).request(method, url, *args, **kwargs)
  File "/usr/share/python-wheels/requests-2.12.4-py2.py3-none-any.whl/requests/sessions.py", line 488, in request
    resp = self.send(prep, **send_kwargs)
  File "/usr/share/python-wheels/requests-2.12.4-py2.py3-none-any.whl/requests/sessions.py", line 609, in send
    r = adapter.send(request, **kwargs)
  File "/usr/share/python-wheels/CacheControl-0.11.7-py2.py3-none-any.whl/cachecontrol/adapter.py", line 47, in send
    resp = super(CacheControlAdapter, self).send(request, **kw)
  File "/usr/share/python-wheels/requests-2.12.4-py2.py3-none-any.whl/requests/adapters.py", line 423, in send
    timeout=timeout
  File "/usr/share/python-wheels/urllib3-1.19.1-py2.py3-none-any.whl/urllib3/connectionpool.py", line 643, in urlopen
    _stacktrace=sys.exc_info()[2])
  File "/usr/share/python-wheels/urllib3-1.19.1-py2.py3-none-any.whl/urllib3/util/retry.py", line 315, in increment
    total -= 1
TypeError: unsupported operand type(s) for -=: 'Retry' and 'int'

Upvotes: 0

Views: 52596

Answers (6)

Viewer
Viewer

Reputation: 1

file>NewProjectsSetup>Preferencesfornewprojects>PythonInterpreter> click on + symbol to search for packages, search for dash, install the package and you should be fine.

Upvotes: -2

Naeemah Small
Naeemah Small

Reputation: 11

If you are using Jupyter notebook or Jupyter Lab, try to install jupyter-dash by:

pip install jupyter-dash

in the code:

from jupyter_dash import JupyterDash

pd.options.plotting.backend = "plotly"

Upvotes: 0

Bravish Ghosh
Bravish Ghosh

Reputation: 1

Create a virtual environment:

virtualenv venv # creates a virtualenv called "venv"
source venv/bin/activate # uses the virtualenv

and then pip install dash

Upvotes: 0

Daniel Rodriguez
Daniel Rodriguez

Reputation: 11

I had the same problem, I solved it running pip install dash on conda terminal (if you are using Anaconda).

Upvotes: 1

Proability
Proability

Reputation: 76

From what I can tell - and I am extremely green - it appears that python / environments scan for modules by filename in the appropriate "site packages" directory. I had installed Dash via command prompt for my system python and then also via the anaconda command prompt.

When I would try to import dash in Spyder through anaconda, I got this same error. I was able to fix the issue by renaming the folder that contained the init file from dash_rendered to just dash.

It would appear that then when Spyder scanned it's packages, it could identify the correct directory.

I had no trouble installing dash to python generally with the command provided from Plotly in the command line.

pip install dash==1.7.0

I can see this was a year ago and that Dash has changed a bit since then - but hopefully this helps future users whose environments aren't recognizing the module as "dash" without renaming, as in Spyder.

Upvotes: 1

aneroid
aneroid

Reputation: 16057

The command sudo apt-get install python dash installs the system package python (correct) and the system package dash (incorrect), which is a linux shell.

After installing Python with sudo apt-get install python, to install the python package dash, you need to do sudo pip install dash==0.29.0 or sudo python -m pip install dash==0.29.0.

Upvotes: 3

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