Flask debug depends on tkinter, sometimes - python

When I try to import non-standard modules into my Flask app with debug mode on and run it locally, the Flask server crashes with an ImportError for _tkinter. If I remove the import for the non-standard module, or turn off debug mode, everything works as expected.
Examples
The following runs fine, and "Hello, World" can be seen at localhost:5000
from flask import Flask
app = Flask(__name__)
#app.route("/")
def home():
return "Hello, World"
if __name__ == '__main__':
app.run(debug=True)
If I add the following line at the top of the file
import dateparser
I get the following Traceback when I run the file:
flask#ubuntu:~/tkerr$ python app.py
* Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)
* Restarting with stat
Traceback (most recent call last):
File "app.py", line 10, in <module>
app.run(debug=True)
File "/usr/local/lib/python2.7/dist-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 622, in run_simple
reloader_type)
File "/usr/local/lib/python2.7/dist-packages/werkzeug/_reloader.py", line 269, in run_with_reloader
reloader.run()
File "/usr/local/lib/python2.7/dist-packages/werkzeug/_reloader.py", line 159, in run
for filename in chain(_iter_module_files(), self.extra_files):
File "/usr/local/lib/python2.7/dist-packages/werkzeug/_reloader.py", line 70, in _iter_module_files
for package_path in getattr(module, '__path__', ()):
File "/usr/lib/python2.7/dist-packages/six.py", line 116, in __getattr__
_module = self._resolve()
File "/usr/lib/python2.7/dist-packages/six.py", line 105, in _resolve
return _import_module(self.mod)
File "/usr/lib/python2.7/dist-packages/six.py", line 76, in _import_module
__import__(name)
File "/usr/lib/python2.7/lib-tk/tkCommonDialog.py", line 11, in <module>
from Tkinter import *
File "/usr/lib/python2.7/lib-tk/Tkinter.py", line 42, in <module>
raise ImportError, str(msg) + ', please install the python-tk package'
ImportError: No module named _tkinter, please install the python-tk package
For confirmation, with debug mode turned off everything runs as expected, even if I use the dateparser module. For example, the following shows "2015-01-01 00:00:00"
import dateparser
from flask import Flask
app = Flask(__name__)
#app.route("/")
def home():
return str(dateparser.parse("1 jan"))
if __name__ == '__main__':
app.run()
Importing any standard Python modules, such as
import json
works fine. But any other modules installed through pip cause the same issue.
If I run (as prompted by the error)
sudo apt-get install python-tk
Then the Traceback is replaced with an ImportError for _winreg
flask#ubuntu:~/tkerr$ python app.py
* Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)
* Restarting with stat
Traceback (most recent call last):
File "app.py", line 11, in <module>
app.run(debug=True)
File "/usr/local/lib/python2.7/dist-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 622, in run_simple
reloader_type)
File "/usr/local/lib/python2.7/dist-packages/werkzeug/_reloader.py", line 269, in run_with_reloader
reloader.run()
File "/usr/local/lib/python2.7/dist-packages/werkzeug/_reloader.py", line 159, in run
for filename in chain(_iter_module_files(), self.extra_files):
File "/usr/local/lib/python2.7/dist-packages/werkzeug/_reloader.py", line 70, in _iter_module_files
for package_path in getattr(module, '__path__', ()):
File "/usr/lib/python2.7/dist-packages/six.py", line 116, in __getattr__
_module = self._resolve()
File "/usr/lib/python2.7/dist-packages/six.py", line 105, in _resolve
return _import_module(self.mod)
File "/usr/lib/python2.7/dist-packages/six.py", line 76, in _import_module
__import__(name)
ImportError: No module named _winreg
Details
Python 2.7.7; Ubuntu 14.04 (VMWare VM); Flask/Werkzeug 0.10.1
A solution would be appreciated, but more so I'd love to gain insight into what could cause Flask to require tkinter, considering it displays all debug output from within the web browser.
edit Add output from pip freeze
Flask==0.10.1
Jinja2==2.7.3
MarkupSafe==0.23
PAM==0.4.2
Pillow==2.3.0
PyMySQL==0.6.6
PyYAML==3.11
Twisted-Core==13.2.0
Twisted-Web==13.2.0
Werkzeug==0.10.1
adium-theme-ubuntu==0.3.4
apt-xapian-index==0.45
argparse==1.2.1
beautifulsoup4==4.4.1
ccsm==0.9.11.3
chardet==2.0.1
colorama==0.2.5
command-not-found==0.3
compizconfig-python==0.9.11.3
dateparser==0.3.0
debtagshw==0.1
defer==1.0.6
dirspec==13.10
duplicity==0.6.23
feedparser==5.1.3
html5lib==0.999
httplib2==0.8
itsdangerous==0.24
lockfile==0.8
lxml==3.3.3
oauthlib==0.6.1
oneconf==0.3.7
pexpect==3.1
piston-mini-client==0.7.5
pyOpenSSL==0.13
pycrypto==2.6.1
pycups==1.9.66
pycurl==7.19.3
pygobject==3.12.0
pyserial==2.6
pysmbc==1.0.14.1
python-apt==0.9.3.5
python-dateutil==2.4.2
python-debian==0.1.21-nmu2ubuntu2
pyxdg==0.25
reporter==0.1.2
reportlab==3.0
requests==2.2.1
sessioninstaller==0.0.0
six==1.5.2
software-center-aptd-plugins==0.0.0
system-service==0.1.6
unity-lens-photos==1.0
urllib3==1.7.1
virtualenv==1.11.4
wsgiref==0.1.2
xdiagnose==3.6.3build2
youtube-dl==2014.02.17
zope.interface==4.0.5

I just tried running the following code on my Windows 10 machine and it worked fine for me.
Flask-Test.py
import dateparser
from flask import Flask
app = Flask(__name__)
#app.route("/")
def home():
return str(dateparser.parse("1 jan"))
if __name__ == '__main__':
app.run(debug=True)
I think there may be an issue with the python environment that you're currently working in. Perhaps try creating a virtual environment to operate out of using virtualenv to make sure that your environment is setup correctly.
If you would like to following along with the steps that I took to setup up a virtual environment to test the code, see below. The commands used might be slightly different when running from Ubuntu.
pip install virtualenv
Navigate to the folder where you have your test code saved and create the Virtual Environment using the following command
virtualenv env
Activate the virtual environment by navigating to the 'activate' file. In my case it was located at
.\venv\Scripts\activate
Download Flask and dateparser using pip
pip install Flask
pip install dateparser
Finally, activate the test file through the virtual environment
python .\Flasky-Test.py
Navigating to localhost returned a value of 2015-01-01 00:00:00 for me ok.
Edit
I just tried running your list of packages and managed to replicate the error that you were receiving. I believe the problem might be with the version of six that you are using. Try running
pip install six --upgrade
And let me know if that fixes the problem for you - it did for me.

Related

How to prevent osx from using python flask 2.7

I have added the following alias to my ~/.bash_profile in order to run python3.8 instead of osx's default 2.7.: alias python=/usr/local/bin/python3. So now, when I run python --version, I successfully see that I'm running python 3.8.
The problem is, when I run a flask application, it appears to still be referencing python2.7 in my system, as noted in the stack trace:
$ env FLASK_APP=server.py flask run
* Serving Flask app "server.py"
* Environment: production
WARNING: This is a development server. Do not use it in a production deployment.
Use a production WSGI server instead.
* Debug mode: off
Traceback (most recent call last):
File "/usr/local/bin/flask", line 11, in <module>
sys.exit(main())
File "/Library/Python/2.7/site-packages/flask/cli.py", line 966, in main
cli.main(prog_name="python -m flask" if as_module else None)
File "/Library/Python/2.7/site-packages/flask/cli.py", line 586, in main
return super(FlaskGroup, self).main(*args, **kwargs)
File "/Library/Python/2.7/site-packages/click/core.py", line 717, in main
rv = self.invoke(ctx)
File "/Library/Python/2.7/site-packages/click/core.py", line 1137, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File "/Library/Python/2.7/site-packages/click/core.py", line 956, in invoke
return ctx.invoke(self.callback, **ctx.params)
File "/Library/Python/2.7/site-packages/click/core.py", line 555, in invoke
return callback(*args, **kwargs)
File "/Library/Python/2.7/site-packages/click/decorators.py", line 64, in new_func
return ctx.invoke(f, obj, *args, **kwargs)
File "/Library/Python/2.7/site-packages/click/core.py", line 555, in invoke
return callback(*args, **kwargs)
File "/Library/Python/2.7/site-packages/flask/cli.py", line 848, in run_command
app = DispatchingApp(info.load_app, use_eager_loading=eager_loading)
File "/Library/Python/2.7/site-packages/flask/cli.py", line 305, in __init__
self._load_unlocked()
File "/Library/Python/2.7/site-packages/flask/cli.py", line 330, in _load_unlocked
self._app = rv = self.loader()
File "/Library/Python/2.7/site-packages/flask/cli.py", line 388, in load_app
app = locate_app(self, import_name, name)
File "/Library/Python/2.7/site-packages/flask/cli.py", line 240, in locate_app
__import__(module_name)
File "/Users/vismarkjuarez/Documents/Github/Distributed-Systems/app/server.py", line 18
return f'Welcome to Quiz API v1!'
I'm new to Python -- how do I get python 2.7 to stop being referenced?
Not entirely sure how you have your profile configured or your specific environment variables but it is very common to use Virtual Environments.
venv is built into python which will create a contained "environment" for your project.
You can create a virtual environment by calling
$python3 -m venv venv
This will create a folder in your current directory which you have to source.
$ source venv/bin/activate
This should change your terminal line to show you are in the environment. Then you can check to ensure you're using python three.
$ which python
>> /<path-to-current-directory>/venv/bin/python
You will notice you now need to reinstall all of your packages you want to use. That's because this is all self contained.
$ pip list
Package Version
---------- -------
pip 19.0.3
setuptools 40.8.0
Once your pip install all of your packages again, and run your code while the virtual environment is activated, all python scripts will revert to this python version you created the environment with. It was creates specifically for times like this.
So if you want to follow along in your terminal, you can do the following. The dollar sign signifies a new command into the terminal and doesn't need to be entered.
$ python3 -m venv venv
$ source venv/bin/activate
$ pip install --upgrade pip
$ pip install flask==1.1.1
Then I created a small file called app.py with the following contents
from flask import Flask
app = Flask(__name__)
#app.route("/")
def hello():
return "Hello World!"
if __name__ == "__main__":
app.run()
Then running
$ env FLASK_APP=app.py flask run
starts the application in python3
Changing the alias in your ~/.bash_profile just changes the call when your personally type python into your terminal. It does not change where applications and programs will search for python. They use your environment variables and current the default python installation is python2. You can also change what interpreter your python script looks for by using a shebang line as the first line of your file
#!/usr/bin/python3
or
#!/usr/bin/env python
You should try creating a virtual environment to check if this solves your problem
there's a varietey to achieve this, but most of them consist of creating a venv -> activating the venv and then starting the python program while the venv is active
Side-note: An IDE like Pycharm can be configured to activate the venv automatically to run your local server, using the "Configurations" dialog.

Google Python cloud-dataflow instances broke without new deployment (failed pubsub import)

I have defined a few different Cloud Dataflow jobs for Python in the Google AppEngine Flex Environment. I have defined my requirements in a requirements.txt file, included my setup.py file, and everything was working just fine. My last deployment was on May 3rd, 2018. Looking through logs, I see that one of my jobs began failing on May 22nd, 2018. The job fails with a stack trace resulting from a bad import, seen below.
Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/dataflow_worker/batchworker.py", line 582, in do_work
work_executor.execute()
File "/usr/local/lib/python2.7/dist-packages/dataflow_worker/executor.py", line 166, in execute
op.start()
File "apache_beam/runners/worker/operations.py", line 294, in apache_beam.runners.worker.operations.DoOperation.start (apache_beam/runners/worker/operations.c:10607)
def start(self):
File "apache_beam/runners/worker/operations.py", line 295, in apache_beam.runners.worker.operations.DoOperation.start (apache_beam/runners/worker/operations.c:10501)
with self.scoped_start_state:
File "apache_beam/runners/worker/operations.py", line 300, in apache_beam.runners.worker.operations.DoOperation.start (apache_beam/runners/worker/operations.c:9702)
pickler.loads(self.spec.serialized_fn))
File "/usr/local/lib/python2.7/dist-packages/apache_beam/internal/pickler.py", line 225, in loads
return dill.loads(s)
File "/usr/local/lib/python2.7/dist-packages/dill/dill.py", line 277, in loads
return load(file)
File "/usr/local/lib/python2.7/dist-packages/dill/dill.py", line 266, in load
obj = pik.load()
File "/usr/lib/python2.7/pickle.py", line 858, in load
dispatch[key](self)
File "/usr/lib/python2.7/pickle.py", line 1090, in load_global
klass = self.find_class(module, name)
File "/usr/local/lib/python2.7/dist-packages/dill/dill.py", line 423, in find_class
return StockUnpickler.find_class(self, module, name)
File "/usr/lib/python2.7/pickle.py", line 1124, in find_class
__import__(module)
File "/usr/local/lib/python2.7/dist-packages/dataflow_pipeline/tally_overages.py", line 27, in <module>
from google.cloud import pubsub
File "/usr/local/lib/python2.7/dist-packages/google/cloud/pubsub.py", line 17, in <module>
from google.cloud.pubsub_v1 import PublisherClient
File "/usr/local/lib/python2.7/dist-packages/google/cloud/pubsub_v1/__init__.py", line 17, in <module>
from google.cloud.pubsub_v1 import types
File "/usr/local/lib/python2.7/dist-packages/google/cloud/pubsub_v1/types.py", line 26, in <module>
from google.iam.v1.logging import audit_data_pb2
ImportError: No module named logging
So the main issue seems to come from the pubsub dependency relying on importing google.iam.v1.logging, which is installed from grpc-google-iam-v1.
Here is my requirements.txt file
Flask==0.12.2
apache-beam[gcp]==2.1.1
gunicorn==19.7.1
google-cloud-dataflow==2.1.1
google-cloud-datastore==1.3.0
pytz
google-cloud-pubsub
google-gax
grpc-google-iam-v1
googleapis-common-protos
google-cloud==0.32
six==1.10.0
protobuf
I am able to run everything locally just fine by doing the following from my project.
$ virtualenv --no-site-packages .
$ . bin/activate
$ pip install --ignore-installed -r requirements.txt
$ python main.py
No handlers could be found for logger "oauth2client.contrib.multistore_file"
INFO:werkzeug: * Running on http://0.0.0.0:8080/ (Press CTRL+C to quit)
INFO:werkzeug: * Restarting with stat
No handlers could be found for logger "oauth2client.contrib.multistore_file"
WARNING:werkzeug: * Debugger is active!
INFO:werkzeug: * Debugger PIN: 317-820-645
specifically, I am able to do the following locally just fine
$ python
>>> from google.cloud import pubsub
>>> import google.iam.v1.logging
>>> google.iam.v1.logging.__file__
'/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/google/iam/v1/logging/__init__.pyc'
So I know that the installation of the grpc-google-iam-v1 package is working just fine locally.. the required files are there.
My questions are
Why is the install of grpc-google-iam-v1 on the Google AppEngine Flex Environment not installing all of the files correctly? I must be missing the /site-packages/google/iam/v1/logging directory.
Why would this randomly start failing? I didn't do any more deploys, the same code was running and working on the 21st and then it broke on the 22nd on May.
I was able to get the pipeline running again after changing the requirements.txt file to
Flask==0.12.2
apache-beam[gcp]
google-cloud-dataflow
gunicorn==19.7.1
google-cloud-datastore==1.3.0
pytz
google-cloud-pubsub
google-gax
grpc-google-iam-v1
googleapis-common-protos
google-cloud==0.32
six==1.10.0
protobuf
so simply removing the version requirements from apache-beam[gcp] and google-cloud-dataflow did the trick.
Building on the solution provided by John Allard, removing the version from the requirements.txt will automatically default to the latest version. Thus, with no version specified for apache-beam[gcp] , google-cloud-dataflow and google-cloud-pubsub they will all run on the latest version and solve the dependency issue. The requirements.txt will look like the following:
Flask==0.12.2
apache-beam[gcp]
gunicorn==19.7.1
google-cloud-dataflow
google-cloud-datastore==1.3.0
pytz
google-cloud-pubsub
google-gax
grpc-google-iam-v1
googleapis-common-protos
google-cloud==0.32
six==1.10.0
protobuf

Quickstart Flask application failing for some reason

I created a fresh virtualenv environment for a Flask application called flask-test so that I could do some testing. Imagine my surprise when, running the quickstart application, I get the following error:
Honorss-MacBook-Air-2:Desktop Honors$ cd flask-testing
Honorss-MacBook-Air-2:flask-testing Honors$ source bin/activate
(flask-testing)Honorss-MacBook-Air-2:flask-testing Honors$ python app.py
* Restarting with stat
* Debugger is active!
Traceback (most recent call last):
File "app.py", line 10, in <module>
app.run()
File "/Users/Honors/Desktop/flask-testing/lib/python3.5/site-packages/flask/app.py", line 772, in run
run_simple(host, port, self, **options)
File "/Users/Honors/Desktop/flask-testing/lib/python3.5/site-packages/werkzeug/serving.py", line 633, in run_simple
application = DebuggedApplication(application, use_evalex)
File "/Users/Honors/Desktop/flask-testing/lib/python3.5/site-packages/werkzeug/debug/__init__.py", line 169, in __init__
if self.pin is None:
File "/Users/Honors/Desktop/flask-testing/lib/python3.5/site-packages/werkzeug/debug/__init__.py", line 179, in _get_pin
self._pin, self._pin_cookie = get_pin_and_cookie_name(self.app)
File "/Users/Honors/Desktop/flask-testing/lib/python3.5/site-packages/werkzeug/debug/__init__.py", line 96, in get_pin_and_cookie_name
h.update('cookiesalt')
TypeError: Unicode-objects must be encoded before hashing
The contents of app.py are:
from flask import Flask
app = Flask(__name__)
#app.route('/')
def hello_world():
return 'Hello World!'
if __name__ == '__main__':
app.debug = True
app.run()
pip list says that the contents of the environment are:
Flask (0.10.1)
Flask-Login (0.3.2)
Flask-WTF (0.12)
itsdangerous (0.24)
Jinja2 (2.8)
MarkupSafe (0.23)
pip (7.1.2)
setuptools (18.2)
Werkzeug (0.11)
wheel (0.24.0)
WTForms (2.0.2)
All of my other virtual environments run as expected.
Seems like a bug: the related issue Werkzeug 0.11 with Flask 0.10.1 and 'app.debug = True' won't start. #798
I create a new virtual environment using python3.5 and meet the same error, but if I don't use the debug mode, it's fine.
And as the issue says, downgrade Werkzeug to 0.10.4 seem works. You can have a try.

CKAN Install: paster error

Installing CKAN locally on OSX 10.9, based on http://docs.ckan.org/en/latest/maintaining/installing/install-from-source.html.
I've created and activated the python virtualenv and now need to create a CKAN config file:
$ paster make-config ckan /etc/ckan/default/development.ini
The output is as follows (ImportError at the last line):
Distribution already installed:
ckan 2.2 from ~/ckan/lib/default/src/ckan
Traceback (most recent call last):
File "/usr/lib/ckan/default/bin/paster", line 9, in <module>
load_entry_point('PasteScript==1.7.5', 'console_scripts', 'paster')()
File "/usr/lib/ckan/default/lib/python2.7/site-packages/paste/script/command.py", line 104, in run
invoke(command, command_name, options, args[1:])
File "/usr/lib/ckan/default/lib/python2.7/site-packages/paste/script/command.py", line 143, in invoke
exit_code = runner.run(args)
File "/usr/lib/ckan/default/lib/python2.7/site-packages/paste/script/appinstall.py", line 68, in run
return super(AbstractInstallCommand, self).run(new_args)
File "/usr/lib/ckan/default/lib/python2.7/site-packages/paste/script/command.py", line 238, in run
result = self.command()
File "/usr/lib/ckan/default/lib/python2.7/site-packages/paste/script/appinstall.py", line 295, in command
self.distro, self.options.ep_group, self.options.ep_name)
File "/usr/lib/ckan/default/lib/python2.7/site-packages/paste/script/appinstall.py", line 234, in get_installer
'paste.app_install', ep_name)
File "/usr/lib/ckan/default/lib/python2.7/site-packages/pkg_resources.py", line 2302, in load_entry_point
return ep.load()
File "/usr/lib/ckan/default/lib/python2.7/site-packages/pkg_resources.py", line 2029, in load
entry = __import__(self.module_name, globals(),globals(), ['__name__'])
File "~/ckan/lib/default/src/ckan/ckan/config/install.py", line 3, in <module>
from pylons.util import PylonsInstaller
ImportError: No module named pylons.util
I'm not sure how to proceed, any ideas?
ImportError: No module named pylons.util looks like Python cannot find the Pylons package, one of the Python packages that CKAN depends on. Two possibilities come to mind:
Did you activate your CKAN virtualenv, before running the paster command? ~/ckan/default/bin/activate.
Have you installed the Python packages that CKAN depends on into your virtualenv? With the virtualenv activated run pip install -r ~/ckan/default/src/ckan/requirements.txt
If you activate your CKAN virtual environment and then run pip freeze | grep pylons, this should tell you whether pylons is installed in the virtualenv.
The Distribution already installed: at the top of your terminal output is strange.
I had the same error and a slightly different solution:
got the error only after using sudo, so I went out of it (sudo -k)
then I got the following error: IOError: [Errno 13] Permission denied: '/etc/ckan/default/development.ini'
after digging around a lot, I finally found out that while the /etc/ckan had correct permissions, it was actually a symlink to ~/ckan/etc and that folder did not have correct permissions
I ran sudo chown -R `whoami` ~/ckan/etc and followed up with paster make-config ckan /etc/ckan/default/development.ini

Import Errors in Virtualenv

I'm trying to run python setup.py a small script on a Linode instance where I'm running Flask + sqlalchemy (mysql).
#filename - setup.py
from daaru import db
def init_db():
db.drop_all()
db.create_all()
init_db()
This is the error I'm getting -
Traceback (most recent call last):
File "setup.py", line 21, in <module>
init_db()
File "setup.py", line 9, in init_db
db.drop_all()
File "/home/captain/public/daaru/v1/local/lib/python2.7/site-packages/flask_sqlalchemy.py", line 830, in drop_all
self._execute_for_all_tables(app, bind, 'drop_all')
File "/home/captain/public/daaru/v1/local/lib/python2.7/site-packages/flask_sqlalchemy.py", line 814, in _execute_for_all_tables
op(bind=self.get_engine(app, bind), tables=tables)
File "/home/captain/public/daaru/v1/local/lib/python2.7/site-packages/flask_sqlalchemy.py", line 763, in get_engine
return connector.get_engine()
File "/home/captain/public/daaru/v1/local/lib/python2.7/site-packages/flask_sqlalchemy.py", line 443, in get_engine
self._engine = rv = sqlalchemy.create_engine(info, **options)
File "/home/captain/public/daaru/v1/local/lib/python2.7/site-packages/sqlalchemy/engine/__init__.py", line 338, in create_engine
return strategy.create(*args, **kwargs)
File "/home/captain/public/daaru/v1/local/lib/python2.7/site-packages/sqlalchemy/engine/strategies.py", line 64, in create
dbapi = dialect_cls.dbapi(**dbapi_args)
File "/home/captain/public/daaru/v1/local/lib/python2.7/site-packages/sqlalchemy/connectors/mysqldb.py", line 52, in dbapi
return __import__('MySQLdb')
ImportError: No module named MySQLdb
The funny part is that when I log into the server, activate the virtual env (named v1), and run init_db in ipython everything works as expected. But when I run it as a script, it gives me an ImportError for the module named MySQLdb. MySQLdb has a systemwide installation using apt-get install python-mysqldb as this package is not available via pip.
What am I doing wrong here?
Running pip freeze on the server shows me this:
Flask==0.9
Flask-SQLAlchemy==0.16
Jinja2==2.6
SQLAlchemy==0.7.9
Werkzeug==0.8.3
argparse==1.2.1
wsgiref==0.1.2
Is the error coming because mysqldb package is not found in the venv? Why isn't then the systemwide installation of that package being used?
I used this blog post to install mysql-python in my venv. Everything works likes a charm now. Thanks.
I've also added a fabfile to automate deployment -
from fabric.api import *
env.user = "host"
env.hosts = ["hostname"]
env.directory = "/home/captain/public/daaru"
env.activate = "source /home/captain/public/daaru/v1/bin/activate"
def deploy():
with cd(env.directory):
run("git pull")
run("sudo service apache2 reload")
def virtualenv(command):
with cd(env.directory), prefix(env.activate):
run(command)
def populate_db():
virtualenv("python setup.py")
def freeze():
""" command for testing virtualenv """
virtualenv("pip freeze")
I just ran into this, and the simple, dirty workaround for me was to cp -r /usr/lib/python2.7/dist-packages/*mysql* $VIRTUALENV/lib/python2.7/dist-packages/ and cp -r /usr/lib/python2.7/dist-packages/*MySQL* $VIRTUALENV/lib/python2.7/dist-packages/, which picked up all needed parts.
Looking into it more it turned out that pip install MySQL-python failed in the virtualenv due to libmysqlclient-dev not being installed via apt. Hope this helps.

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