i am new to python, on my Mac, when i issue command
User:ihasfriendz user$ python main.py
Traceback (most recent call last):
File "main.py", line 2, in <module>
import json
ImportError: No module named json
I get error on json. how to add this library? i'm using 2.5 (the default came with leopard)
You can also install simplejson.
If you have pip (see https://pypi.python.org/pypi/pip) as your Python package manager you can install simplejson with:
pip install simplejson
This is similar to the comment of installing with easy_install, but I prefer pip to easy_install as you can easily uninstall in pip with "pip uninstall package".
AFAIK the json module was added in version 2.6, see here. I'm guessing you can update your python installation to the latest stable 2.6 from this page.
You can also install json-py from here http://sourceforge.net/projects/json-py/
Related
I setup a new Debian 10 (Buster) instance on AWS EC2, and was able to install a pip3 package that depended on netifaces, but when I came back to it the next day the package is breaking reporting an error in netifaces. If I try to run pip3 install netifaces I get the same error:
~$ pip3 install netifaces
Collecting netifaces
Using cached https://files.pythonhosted.org/packages/0d/18/fd6e9c71a35b67a73160ec80a49da63d1eed2d2055054cc2995714949132/netifaces-0.10.9.tar.gz
Complete output from command python setup.py egg_info:
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/usr/lib/python3/dist-packages/setuptools/__init__.py", line 20, in <module>
from setuptools.dist import Distribution, Feature
File "/usr/lib/python3/dist-packages/setuptools/dist.py", line 35, in <module>
from setuptools.depends import Require
File "/usr/lib/python3/dist-packages/setuptools/depends.py", line 7, in <module>
from .py33compat import Bytecode
File "/usr/lib/python3/dist-packages/setuptools/py33compat.py", line 55, in <module>
unescape = getattr(html, 'unescape', html_parser.HTMLParser().unescape)
AttributeError: 'HTMLParser' object has no attribute 'unescape'
HTMLParser().unescape was removed in Python 3.9. Compare the code in Python 3.8 vs Python 3.9.
The error seems to be a bug in setuptools. Try to upgrade setuptools. Or use Python 3.8.
I was facing this issue in PyCharm 2018. Apart from upgrading setuptools as mentioned above, I also had to upgrade to PyCharm 2020.3.4 to solve this issue. Related bug on PyCharm issue tracker: https://youtrack.jetbrains.com/issue/PY-39579
Hope this helps someone avoid spending hours trying to debug this.
I had python3.6 and related packages through deb management.
Needed python3.9 for side project and the solution to fix pip and AttributeError: 'HTMLParser' object has no attribute 'unescape'
was to update pip for python3.9 locally for one user:
python3.9 -m pip install --upgrade pip
now installing python3.9 version of the pip-packages work:
python3.9 -m pip install --target=~/.local/lib/python3.9/site-packages numpy
Downgrading to any older python3 version is not the solution and most of the time upgrading setuptools won't fix the issue. The proper solution that worked for me to work with pip using python3.9 is the following on Ubuntu18:
locate /usr/lib/python3/dist-packages/setuptools/py33compact.py33
and change
# unescape = getattr(html, 'unescape', html_parser.HTMLParser().unescape) # comment out this line
unescape = getattr(html, 'unescape', None)
if unescape is None:
# HTMLParser.unescape is deprecated since Python 3.4, and will be removed
# from 3.9.
unescape = html_parser.HTMLParser().unescape
these are the Error messages I am geeting on running any of my project modules.
Traceback (most recent call last):
File "C:\Users\hsnl\BlockchainCodesTutor\Wallet.py", line 3, in <module>
import Transactions
File "C:\Users\hsnl\BlockchainCodesTutor\Transactions.py", line 2, in <module>
import Signatures
File "C:\Users\hsnl\BlockchainCodesTutor\Signatures.py", line 2, in <module>
import cryptography
ModuleNotFoundError: No module named 'cryptography'
I have already installed the cryptography module and was working perfectly until today I start getting this message that " No module named 'cryptography'".
I have again installed the cryptography as well as pip package but still showing the same error.
There might be loose versions running on your system. Please try the following:
python -m pip uninstall cryptography
python -m pip install cryptography
You can also check out this with python -m to make sure you are not using a loose pip.
You might not have cryptogtaphy installed correctly. I see you are using windows. Open commandline as an administrator and run pip install cryptography again. Enshure that the installation finishes without any errors and consider to restart your python interpreter after installation.
For further help you should post more details like the output of pip and your code leading to the error, so a more detailed answer for your problem can be given.
Try download cryptography whl from here.
Then use pip install cryptography-XXX.whl
For example:
pip install cryptography-3.3.1-cp36-abi3-win_amd64.whl
And now just supports python2.7 and python3.6.
I wanted to use turicreate library which doesn't support python 3.8 yet. So tried downgrading python to 3.7 using
downgrade python
But now I cant use pip. Even a simple command using pip like,
pip --version
gives me an error:
Traceback (most recent call last):
File "/usr/bin/pip", line 6, in <module>
from pkg_resources import load_entry_point
ModuleNotFoundError: No module named 'pkg_resources'
I have already tried downgrading pip to 19.0.3.
Also tried uninstalling and reinstalling both packages.
What can I possibly do? I use Arch Linux btw.
Instead of downgrading python for the whole OS, may be you should try using a downgraded python version for just your project.
Try using a virtual environment and use it to create a dev environment with python 3.7.
I'm using a Kubernetes inventory builder script found here: https://github.com/kubernetes-sigs/kubespray/blob/master/contrib/inventory_builder/inventory.py
On line 36, the ruamel YML library is imported using the code from ruamel.yaml import YAML. This library can be found here: https://pypi.org/project/ruamel.yaml/
On my OSX device (Mojave 10.14.3), if I run pip list, I can clearly see the most up to date version of ruamel.yaml:
If I run pip show ruamel.yaml, I get the following output:
I'm running the script with this command: CONFIG_FILE=inventory/mycluster/hosts.ini python3 contrib/inventory_builder/inventory.py 10.0.0.1 10.0.0.2 10.0.0.4 10.0.0.5
Bizarrely, it returns the following error:
Traceback (most recent call last):
File "contrib/inventory_builder/inventory.py", line 36, in <module>
from ruamel.yaml import YAML
ModuleNotFoundError: No module named 'ruamel'
I have very little experience with Python, so don't understand how this could be failing. Have I installed the library incorrectly or something? From the documentation on the ruamel.yml project page, it looks like the script is calling the library as it should be.
Thanks in advance
In my case, I was installing this with pip3 install ruamel.yaml, and it was puting the package in /usr/local/lib/python3.9/site-packages/, but the python3 binary on the machine was pinned to Python 3.7, so trying to import that module was sending the ModuleNotFoundError message.
What helped to fix this, was to install the module with python3 -m pip install ruamel.yaml, running pip via the python3 binary makes sure it runs on the same version, in this case 3.7, and gets installed via the correct version number site-packages.
pip is set to point to the Python 2 installation. To install the library under Python 3, do pip3 install ruamel.yml.
you're using python 3 and want to use the package that is with python 2. Go to the directory where your python 3 is, navigate to Scripts and use the pip in there to install the needed library.
This helped me (adding version number to python):
CONFIG_FILE=inventory/mycluster/hosts.yaml python3.6 contrib/inventory_builder/inventory.py ${IPS[#]}
[python 3.10.x].
There is no package called ruamel.yaml
what worked is pip install ruamel-yaml
The title basically explains it all.
I am running Windows 8 (windows 7 was previously installed... If it helps with answering) and am using Python 2.7.
Upon using the code:
python setup.py install
I am getting this error:
C:\Users\Nicholas\Desktop\taggit>python setup.py install
Traceback (most recent call last):
File "setup.py", line 52, in
from setuptools import setup
ImportError: No module named setuptools
Any help?
Thanks in advance
Nicholas
You need to install setuptools, which allows packages to be configured for your Python installation. It is not included with the default Python installer.
From this link you can download Windows installers for many Python packages (I have linked it directly to setuptools). Make sure you download the version that matches your Python installation.
in Python 3:
pip3 install setuptools
And in Python 2.x:
pip install setuptools