I have written a program in Python which was done on windows. And in the windows test environment worked fine. Now I am setting up a linux server to internally host the program. I have installed all the dependencies etc from a generated requirements file but when I run it I come on a problem,
ImportError: No Module Named 'pysqlite2'.
I have extensively googled this issue and have not found a solution. Can anyone tell me how to fix this problem from code below? I cannot upload an image due to reputation isnt high enough. Any help would be greatly appreciated. If any other information is needed just comment and I will upload.
File "/home/ryan/python_p/venv/lib/python3.4/site-packages/sqlalchemy/dialects/sqlite/pysqlite.py", line 334, in dbapi
from pysqlite2 import dbapi2 as sqlite
ImportError: No Module named 'pysqlite2'
As far as I understand it sqlite either is not compatible or has compatibility issues?
Another issue that I think is directly related is when inside the virtual environment and I try pip3.4 install pysqlite i get
SyntaxError: Missing Parenthesis in call to 'Print
Its suggests install Sphinx which I did but did not cure.
I think these two issues are directly related and by curing ine should be able to cure the other.
You could probably just use sqlite3 which is now part of the standard library and should work exactly the same as pysqlite2 does. You can try to modify the file mentioned from:
from pysqlite2 import dbapi2 as sqlite
to
from sqlite3 import dbapi2 as sqlite
You can do the below changes to make your jupyter notebook work
Replace the file “C:\Windows\System32\sqlite3.dll”
by “C:\Users\username\anaconda3\Library\bin\sqlite3.dll”
This will make jupyter notebook work
Try pip search sqlite, you may find many candidates. Pick something like this one:
pip install pysqlite
For people on CentOS 6 and Python 2.6:
Executing pip install pysqlite directly would result in a gcc error, you would have to yum install sqlite-devel first, before installing pysqlite.
After that, ImportError may still persist, if you are using a Python version different from the Python 2.6 that's shipped with CentOS 6. The error message I got is like:
ImportError: /usr/local/lib/python2.7/site-packages/pysqlite2/_sqlite.so: undefined symbol: sqlite3_stmt_readonly
This is a linking issue, copying below compiled library files from old Py2.6 directory to Py2.7 solved my problem, as inspired by this Github discussion.
cp /usr/lib64/python2.6/lib-dynload/_sqlite3.so /usr/local/lib/python2.7/sqlite3/
cp /usr/lib64/python2.6/lib-dynload/_sqlite3.so /usr/local/lib/python2.7/lib-dynload/
I faced this issue with multiple python dependent package while setup, specifically while installing jupyter notebook in python virtual enironment in Ubuntu.It is because of sqlite binding for our python.
Error I got:
from pysqlite2 import dbapi2 as sqlite3
ModuleNotFoundError: No module named 'pysqlite2'
I resolved it by --enable-loadable-sqlite-extensions=yes
1.) First find your python or python version you used for creating virtual env. I have used python3.8
e.g
$ whereis python
python: /usr/bin/python3.6m /usr/bin/python /usr/bin/python3.8 /usr/bin/python2.7-config /usr/bin/python3.8-config python
$ cd /usr/bin
$ls
python3.8
python3.8-config
Note: there will be many package check for pytho. you will find configure file for each python version, now use specific python version
ox:/usr/bin$ ./python3.8-config --enable-loadable-sqlite-extensions=yes
OR
ox:/usr/bin$ ./python3.8-config --enable-optimizations --enable-loadable-sqlite-extensions
Now, create your virtual env using that python version
e.g
Go the folder where you want to create the virtual env
$ python3.8 -m venv mlwen_jup_env
$ source mlwen_jup_env/bin/activate
Its done, now you can install packages
Related
I have installed Cassandra database on my CentOs system. after that, I tried to install the Cqlsh package using this command sudo yum install cqlsh and it has been installed successfully. but when I tried to run cqlsh from the terminal, the following error appears:
ImportError: cannot import name ensure_str
somewhere in the code, it tries to load a library named six that contains ensure_str. the error does not say that it can not find a module named six, the python interpreter can find the library but can not import it!
I have tried googling but none of the solutions worked for me.
after a few hours of googling and struggling with the code, finally, I find out the solution. and I'm going to share it with others.
apparently, the problem is the new version of six (v=1.7.3) which is not compatible with my system. However, Cassandra copies the last version of six into the following path:
/usr/share/cassandra/lib/six-1.7.3-py2.py3-none-any.zip
then cqlsh try to force the python interpreter to import the library from this path by adding the following lines to the code.
third_parties = ('futures-', 'six-', 'geomet-')
for lib in third_parties:
lib_zip = find_zip(lib)
if lib_zip:
sys.path.insert(0, lib_zip)
no matter if you have another version of six installed on your system, it always tries to import the library from the Cassandra folder.
So, I have just deleted these lines from cqlsh file using this command:
vim /usr/bin/cqlsh
Then I try to install the last compatible version on six using this command:
yum install six
That's it! problem solved and now I'm using cqlsh without any problem.
I hope it helps others.
We've had reports of this being a problem on CentOS specifically with version 6.7 but it possibly affects the 7.x releases too.
It appears that the wrong Python is getting called. This isn't strictly a Cassandra issue but a problem with the Python on the machine. You can verify which Python gets run with:
$ which python
As a workaround, you should be able to run cqlsh using the system Python as follows:
$ /usr/local/bin/python /usr/bin/cqlsh
Cheers!
Use pip3 to install or upgrade to the current six.
Edit a copy of cqlsh. Change
third_parties = ('futures-', 'six-', 'geomet-')
to
third_parties = ('futures-', 'geomet-')
Not proud, but it worked.
Used pip3 to install, and found this issue as well.
For me, removing six dependencies from /usr/lib/python3/dist-packages was the only thing that worked.
rm six-1.11.0.egg-info and rm -r six-1.11.0.egg-info
I couldn't uninstall it with pip3, so manual removal was the way to go, followed by a pip3 install six
Once that was back in place, cqlsh ran without issue.
The previous answers didn't work for me, I had to delete the Cassandra included six package, and then cqlsh used the system-wide package.
mv /usr/share/cassandra/lib/six-1.7.3-py2.py3-none-any.zip /usr/share/cassandra/lib/six-1.7.3-py2.py3-none-any.zip.bak
Maybe an older version of Cassandra installed, and a newer version of cqlsh?
https://community.datastax.com/questions/12085/unable-to-connect-to-cqlsh.html
When I try to do python manage.py syncdb in my Django app, I get the error ImportError: No module named azure.storage.blob. But thing is, the following packages are installed if one does pip freeze:
azure-common==1.0.0
azure-mgmt==0.20.1
azure-mgmt-common==0.20.0
azure-mgmt-compute==0.20.0
azure-mgmt-network==0.20.1
azure-mgmt-nspkg==1.0.0
azure-mgmt-resource==0.20.1
azure-mgmt-storage==0.20.0
azure-nspkg==1.0.0
azure-servicebus==0.20.1
azure-servicemanagement-legacy==0.20.1
azure-storage==0.20.3
Clearly azure-storage is installed, as is evident. Why is azure.storage.blob not available for import? I even went into my .virtualenvs directory, and got in all the way to azure.storage.blob (i.e. ~/.virtualenvs/myvirtualenv/local/lib/python2.7/site-packages/azure/storage/blob$). It exists!
What do I do? This answer here has not helped: Install Azure Python api on linux: importError: No module named storage.blob
Note: please ask for more information in case you need it
I had a similar issue. To alleviate that, I followed this discussion here: https://github.com/Azure/azure-storage-python/issues/51#issuecomment-148151993
Basically, try pip install azure==0.11.1 before trying syncdb, and I'm confident it will work for you!
There is a thread similar with yours, please check my answer for the thread Unable to use azure SDK in Python.
Based on my experience, Python imports the third-party library packages from some library paths that you can check them thru codes import sys & sys.path in the python interpreter. So you can try to dynamically add the new path contains the installed azure packages into the sys.path in the Python runtime to solve the issue. For adding the new library path, you just code sys.path.append('<the new paths you want to add>') at the front of the code like import azure.
If the way has not helped, I suggest you can try to reinstall Python environment. On Ubuntu, you can use the command sudo apt-get remove python python-pip & sudo apt-get install python python-pip to reinstall Python 2.7 & pip 2.7.(Note: The current major Linux distributions use Python 2.7 as the system default version.)
If Python 3.4 as your runtime for Django, the apt package names for Ubuntu are python3 and python3-pip, and you can use sudo pip3 install azure for Python 3.4 on Ubuntu.
Any concern, please feel free to let me know.
I am using vagrant to run my python environment. In my data models I am using django-picklefield module.
when I run my server it says
ImportError: No module named picklefield.fields.
I tried to uninstall and install the picklefield module. Still having the same problem.
You should be able install via:
/[your python install directory]/bin/pip install django-picklefield
If you do this directly instead of a general pip call to install django-picklefield, that will ensure that it is installed on the correct version of Python.
Based on your description my best guess is that you have multiple versions of Python installed, and that your install/uninstall is happening on the wrong one.
Where can I download _winreg for python3 if I can at all. I have my 'windir' on E:\Windows. I do not know if cx_Freeze did not notice that. I am using cx_Freeze to create an msi installer.
As it says in the _winreg documentation, it has been renamed to winreg in Python 3.0. You should run the 2to3 tool if you're converting code that was written for Python 2.x.
I know this is an old question, but this was the first search result when Googling for ModuleNotFoundError: No module named '_winreg', and perhaps may be helpful for someone.
I got the same error when trying to use a virtual environment folder, which has been created using different (already deleted) python binaries. The solution was recreate the virtual environment:
Delete the virtual environment folder
Run python -m venv <name_of_virtual_environment>
I have found an easy solution for this, Even though i found it after a lot of Rnd, the solution implementation is so simple and straight forward. Hope it can help many people with the same problem.
If you dont have the latest version of Python installed on your machine, You need to download it from (https://www.python.org/downloads/) and then click on Add to path option and just finish the installer.
Please open CMD and move to the python latest version directory, then run the pip install package name (e.g) pip install pygame and it will be successful
1. C:\WINDOWS\system32>cd C:\Users\admin\AppData\Local\Programs\Python\Python37-32
2. C:\Users\admin\AppData\Local\Programs\Python\Python37-32>pip install Pygame
It will install the packages now without any issues.
Downloading
Successfully installed Pygame-1.9.4
C:\Users\admin\AppData\Local\Programs\Python\Python37-32>
If you are still facing issues in Pycharm after trying the above solution, please try the following steps too.
Create new virtual Environment from settings menu and select the latest version of python framework as Project Interpreter and give a new folder path.
select the pip package you want to import. Recompile the code and the error will clear.
Hope this helps.
When you encounter an error like module of simpleai not found,
use
pip install simpleai
in the prompt and then execute. It will get installed.
I am trying to install MySQLdb package. I found the source code here.
I did the following:
gunzip MySQL-python-1.2.3c1.tar.gz
tar xvf MySQL-python-1.2.3c1.tar
cd MySQL-python-1.2.3c1
python setup.py build
As the result I got the following:
Traceback (most recent call last):
File "setup.py", line 5, in ?
from setuptools import setup, Extension
ImportError: No module named setuptools
Does anybody knows how to solve this problem?
By the way, if I am able to do the described step, I will need to do the following:
sudo python setup.py install
And I have no system-administrator-rights. Do I still have a chance to install MySQLdb?
Thank you.
After trying many suggestions, simply using sudo apt-get install python-mysqldb worked for me.
More info:
Getting "Error loading MySQLdb module: No module named MySQLdb" - have tried previously posted solutions
If MySQLdb's now distributed in a way that requires setuptools, your choices are either to download the latter (e.g. from here) or refactor MySQLdb's setup.py to bypass setuptools (maybe just importing setup and Extension from plain distutils instead might work, but you may also need to edit some of the setup_*.py files in the same directory).
Depending on how your site's Python installation is configured, installing extensions for your own individual use without requiring sysadm rights may be hard, but it's never truly impossible if you have shell access. You'll need to tweak your Python's sys.path to start with a directory of your own that's your personal equivalent of the system-wide site pacages directory, e.g. by setting PYTHONPATH persistently in your own environment, and then manually place in said personal directory what normal installs would normally place in site-packages (and/or subdirectories thereof).
I resolved this issue on centos5.4 by running the following command to install setuptools
yum install python-setuptools
I hope that helps.
This was sort of tricky for me too, I did the following which worked pretty well.
Download the appropriate Python .egg for setuptools (ie, for Python 2.6, you can get it here. Grab the correct one from the PyPI site here.)
chmod the egg to be executable: chmod a+x [egg] (ie, for Python 2.6, chmod a+x setuptools-0.6c9-py2.6.egg)
Run ./[egg] (ie, for Python 2.6, ./setuptools-0.6c9-py2.6.egg)
Not sure if you'll need to use sudo if you're just installing it for you current user. You'd definitely need it to install it for all users.
#main:
$ su
$ yum install MySQL-python
and it will be installed (MySQLdb).
#!/usr/bin/env python
import os
import sys
from **distutils.core** import setup, Extension
if sys.version_info < (2, 3):
raise Error("Python-2.3 or newer is required")
if os.name == "posix":
from setup_posix import get_config
else: # assume windows
from setup_windows import get_config
metadata, options = get_config()
metadata['ext_modules'] = [Extension(sources=['_mysql.c'], **options)]
metadata['long_description'] = metadata['long_description'].replace(r'\n', '')
setup(**metadata)
For Python 2.7, one can easily install using this
apt-get install python2.7-mysqldb
Also, you can see the build dependencies in the file setup.cfg
I am experiencing the same problem right now. According to this post you need to have a C Compiler or GCC. I'll try to fix the problem by installing C compiler. I'll inform you if it works (we'll I guess you don't need it anymore, but I'll post the result anyway) :)
well installing C compiler or GCC didn't work but I found a way to successfully install mysqldb package
kindly follow Mike schrieb's (Thanks to him) instructions here . In my case, I used setuptools-0.6c11-py2.7.egg and setuptools-0.6c11 . Then download the executable file here then install that file. hope it helps :)
When you need to install modules in Linux/Unix and you lack sudo / admin rights, one simple way around it is to use the user scheme installation, basically run
"python setup.py install --user" from the command line in the folder of the module / library to be installed
(see http://docs.python.org/install/index.html for further details)