Where can I find modules 'builtins' and 'future.backports.html'? I need these modules to run program at https://github.com/folz/cleverbot.py/blob/master/cleverbot/cleverbot.py
I tried to install these modules by 'pip' in cmd but cmd says that these modules don't exists.
In the setup.py it says:
install_requires=['future', 'requests'],
So I would imagine that pip install future should do the trick:
$ pip install future
Downloading/unpacking future
Downloading future-0.15.2.tar.gz (1.6MB): 1.6MB downloaded
Running setup.py (path:/tmp/pip-build-Q_wkRy/future/setup.py) egg_info for package future
[..]
Successfully installed future
Cleaning up...
$ python
Python 2.7.10 (default, Oct 14 2015, 16:09:02)
[GCC 5.2.1 20151010] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> from builtins import str
>>> from future.backports.html import parser
Not sure why you're not just running the setup.py file or using pip?
Related
I'm on Linux Mint with both Python 2 and 3 installed. I'm trying to install a particular version of pyparsing for Python3.
When I run an install command pip says it collects the version I requested using a cached file but then says it installs a different version. When I've done this in the past it would first uninstall another version, which it usually does (I've been alternating back and forth occasionally.) Then when I check which version is being imported in both Python2 and Python3, neither one matches the installation message. What could cause this? Thank you!
matt $ python3 -m pip install pyparsing==2.2.0 --force-reinstall
Collecting pyparsing==2.2.0
Using cached https://files.pythonhosted.org/packages/6a/8a/718fd7d3458f9fab8e67186b00abdd345b639976bc7fb3ae722e1b026a50/pyparsing-2.2.0-py2.py3-none-any.whl
Installing collected packages: pyparsing
Successfully installed pyparsing-2.4.0
matt $ python3 -m pip install pyparsing==2.2.0
Collecting pyparsing==2.2.0
Using cached https://files.pythonhosted.org/packages/6a/8a/718fd7d3458f9fab8e67186b00abdd345b639976bc7fb3ae722e1b026a50/pyparsing-2.2.0-py2.py3-none-any.whl
Installing collected packages: pyparsing
Successfully installed pyparsing-2.4.0
matt $ python3
Python 3.6.8 (default, Oct 7 2019, 12:59:55)
[GCC 8.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import pyparsing
>>> pyparsing.__version__
'2.2.0'
>>> exit()
matt $ python
Python 2.7.15+ (default, Oct 7 2019, 17:39:04)
[GCC 7.4.0] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import pyparsing
>>> pyparsing.__version__
'2.3.0'
>>> quit()
Solved: Learn about virtual environments.
pip install virtualenv
Problem: I get a ModuleNotFoundError for psycopg2 in python3, though it's successfully installed via pip3. (I posted short code to summarize from the terminal, but the errors are of course bugging me with .py scripts I'm trying to run.)
Python3 packages:
macs-MacBook-Air-2% pip3 list
Package Version
---------- -------
pip 19.2.3
psycopg2 2.8.4
setuptools 41.4.0
wheel 0.33.6
Python3 psycopg2 error:
macs-MacBook-Air-2% python3
Python 3.7.3 (v3.7.3:ef4ec6ed12, Mar 25 2019, 16:52:21)
[Clang 6.0 (clang-600.0.57)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import psycopg2
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'psycopg2'
I've only done:
pip3 install psycopg2
Extra notes:
As a side note, everything works fine when I run 2.7. (I used pip install psycopg2.)
macs-MacBook-Air-2% python
Python 2.7.10 (default, Oct 6 2017, 22:29:07)
[GCC 4.2.1 Compatible Apple LLVM 9.0.0 (clang-900.0.31)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import psycopg2
>>> psycopg2.__version__
'2.8.4 (dt dec pq3 ext lo64)'
>>>
python 2.7 packages:
macs-MacBook-Air-2% pip list
DEPRECATION: ...2.7 end of life notice..
Package Version
-------------------------------------- -----------
altgraph 0.10.2
astroid 1.6.6
...more
psycopg2 2.8.4
...more
zope.interface 4.6.0
I'm very new to coding, and I searched this error. But, I did not find results that made sense to me including both a python3 error + successful python3 installation.
This could be because your default python installation is Python 2. I think you should create a virtual environment and the install psycopg2 on it. This way you will use pip3 and have isolated dependencies that won't generate conflicts with other versions (and maybe corrupt your system):
python3 -m venv ~/.environments/test
source ~/.environments/test/bin/activate
pip install psycopg2
Is it possible to upgrade a package installed with apt-get, so located in /usr/lib/ , if such package do have a more recent version in pypi but not within the standard Ubuntu repositories as seen by apt?
I guess it is dangerous as it may break dependencies, but it's just to know.
Yes, it is.
I uninstall Flask
$ sudo apt-get remove python-flask
I don't have it:
$ python
Python 2.7.13 (default, Jan 19 2017, 14:48:08)
[GCC 6.3.0 20170118] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import flask
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: No module named flask
I install it
$ sudo apt-get install python-flask
$ python
Python 2.7.13 (default, Jan 19 2017, 14:48:08)
[GCC 6.3.0 20170118] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import flask
>>> flask.__version__
'0.12'
Double-check:
$ pip list -o | grep Flask
DEPRECATION: The default format will switch to columns in the future. You can use --format=(legacy|columns) (or define a format=(legacy|columns) in your pip.conf under the [list] section) to disable this warning.
Flask (0.12.1) - Latest: 0.12.2 [wheel]
Upgrading:
$ sudo pip install --upgrade Flask
...
Successfully installed Flask-0.12.2 Jinja2-2.9.6 MarkupSafe-1.0 Werkzeug-0.12.2 click-6.7 itsdangerous-0.24
$ python
Python 2.7.13 (default, Jan 19 2017, 14:48:08)
[GCC 6.3.0 20170118] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import flask
>>> flask.__version__
'0.12.2'
I see I have an issue with pip check, however:
$ pip list -o | grep Flask
DEPRECATION: The default format will switch to columns in the future. You can use --format=(legacy|columns) (or define a format=(legacy|columns) in your pip.conf under the [list] section) to disable this warning.
Flask (0.12.1) - Latest: 0.12.2 [wheel]
So I must have some links or something broken, but this issue is still alive even if I use apt-get remove. All in all I am able to import newer version of Flask which is what you need I guess.
EDIT
OK, the issue is that pip installs Flask in different location then apt-get. This is pip output:
>>> flask.__file__
'/usr/local/lib/python2.7/dist-packages/flask/__init__.pyc'
And this is apt-get's:
>>> flask.__file__
'/usr/lib/python2.7/dist-packages/flask/__init__.pyc'
Here is a description of how to make pip install you package in a different directory. I have not tested it, however.
I'm on a Mac running OS X !0.10 Yosemite. Default versions of Python & Django are 2.7 & 1.5. I'm want to set up a virtualenv that has Django 1.8 so I'm doing the following:
$ virtualenv --no-site-packages django18env
New python executable in django18env/bin/python2.7
Also creating executable in django18env/bin/python
Installing setuptools, pip...done.
$ source django18env/bin/activate
(django18env)$
Then I'm installing Django 1.8
(django18env)$ sudo pip install django==1.8
Password:
Downloading/unpacking django==1.8
Downloading Django-1.8-py2.py3-none-any.whl (6.2MB): 6.2MB downloaded
Installing collected packages: django
Successfully installed django
Cleaning up...
(django18env)$
Once that has run I have Django installed under django18env/lib/python2.7/site-packages/django
If I look at the __init__.py file in that directory it shows:
from django.utils.version import get_version
VERSION = (1, 8, 0, 'final', 0)
So it certainly looks like the right version is installed in the virtualenv directory. However, if I use django-admin --version I get:
(django18env)$ django-admin version
1.5.4
I've also tried starting python in the virtual env and getting the django version that way:
(django18env)$ python
Python 2.7.8 (default, Jul 29 2014, 21:50:48)
[GCC 4.2.1 Compatible Apple LLVM 5.1 (clang-503.0.40)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import django
>>> django.get_version()
'1.5.4'
>>>
Any ideas on why it still seems to be pointing to 1.5 when 1.8 is installed in the vertualenv?
I've read various other threads on here but can't get the version to point to 1.8
Any help much appreciated
Thanks
don't use sudo on virtualenv. the point of vitualenv is, to install software not system wide, but verily for that enviroment. but no matter inside a virtualenv or outside it, if you use sudo, it will install software to your system globally.
ziya#ziya:~/Desktop/coursera/python/lorem$ virtualenv ipsum
New python executable in ipsum/bin/python2.6
Also creating executable in ipsum/bin/python
Installing setuptools, pip...done.
#created a virtualenv
ziya#ziya:~/Desktop/coursera/python/lorem$ cd ipsum/
ziya#ziya:~/Desktop/coursera/python/lorem/ipsum$ . bin/activate
# will now install package with sudo
(ipsum)ziya#ziya:~/Desktop/coursera/python/lorem/ipsum$ sudo pip install sudokulib # i don't know what it is, just installing.
[sudo] password for ziya:
.....
Collecting sudokulib
/usr/local/lib/python2.7/dist-packages # attention to this path!
...
Successfully installed sudokulib-0.6a0
(ipsum)ziya#ziya:~/Desktop/coursera/python/lorem/ipsum$ python
Python 2.6.5 (r265:79063, Apr 16 2010, 13:57:41)
[GCC 4.4.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import sudokulib # import the newly installed module
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: No module named sudokulib
>>> exit()
(ipsum)ziya#ziya:~/Desktop/coursera/python/lorem/ipsum$ deactivate
#deactivating virtualenv and starting default python
ziya#ziya:~/Desktop/coursera/python/lorem/ipsum$ python
Python 2.7.3 (default, Dec 18 2014, 19:10:20)
[GCC 4.6.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import sudokulib
>>> sudokulib.__version__
'0.6a' #here it is!
>>> exit()
ziya#ziya:~/Desktop/coursera/python/lorem/ipsum$ . bin/activate
(ipsum)ziya#ziya:~/Desktop/coursera/python/lorem/ipsum$ pip install sudokulib #now installing the same module without sudo
Collecting sudokulib
Downloading sudokulib-0.6a.tar.gz
/home/ziya/Desktop/coursera/python/lorem/ipsum/lib/python2.6/site-packages
....
Successfully installed sudokulib-0.6a0
(ipsum)ziya#ziya:~/Desktop/coursera/python/lorem/ipsum$ python
Python 2.6.5 (r265:79063, Apr 16 2010, 13:57:41)
[GCC 4.4.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import sudokulib
>>> sudokulib.__version__
'0.6a' #seems ok now :)
>>>
I found the issue. As I say above, Django 1.8 was being installed in the virtualenv OK but Python wasn't using it. In the vitualenv I started Python and then:
>>>import django
>>>django.__file__
This showed that Django had been imported from:
/usr/local/Cellar/python/2.7.8/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages
And when I looked in my .bash_profile there was a line:
export PYTHONPATH=$PYTHONPATH:/usr/local/Cellar/python/2.7.8/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages
Not sure how/when this got in there but I commented it out, restarted the shell and I now get Django1.8 in my virtualenv and the older (default) version 1.5 outside the virtualenv.
Thanks for the help and suggestions
Working inside a virtualenv, I'm trying to install scikit-image, but it fails, telling me that I need a newer (or any) version of numpy.
$ sudo pip install -U scikit-image
...
ImportError: You need `numpy` version 1.6 or later.
----------------------------------------
Command python setup.py egg_info failed with error code 1 in /Users/aps/Dropbox/experiments/build/scikit-image
I don't understand this, because from Python, numpy 1.7 is already on my path.
$ python
Python 2.7.1 (r271:86832, Jul 31 2011, 19:30:53)
[GCC 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2335.15.00)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import numpy
>>> numpy.__version__
'1.7.1'
What is going on - why can't the system installing scikit-image see the newest version of numpy? And how can I fix this?
The path to numpy already seems to be in my ~/.bash_profile:
>>> numpy.__path__
['/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy']
>>> exit()
$ vi ~/.bash_profile
...
export PYTHONPATH=/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages:$PYTHONPATH
UPDATE:
numpy version 1.7 is also in the su path:
$ sudo python
Password:
Python 2.7.5 (default, Aug 1 2013, 00:59:40)
[GCC 4.2.1 Compatible Apple Clang 4.1 ((tags/Apple/clang-421.11.66))] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import numpy
>>> numpy.__version__
'1.7.1'
You need to make sure that all those packages are available within the virtualenv itself. Did you try running pip freeze after sourcing bin/activate? Using the virtualenv package, the only library that comes "preinstalled" by default is distribute, and all other dependencies must be manually added. With venv (built into py3k) all of your system libraries should be available directly. Which are you using?