I am not able to install the bz2 package in Python 3 Can please anyone guide
I followed the below commands
sudo yum install bzip2-devel
after that, I start my python 3.7 terminal and use the below command
import bz2
The error:
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/local/sysopt/lib/python3.7/bz2.py", line 19, in <module>
from _bz2 import BZ2Compressor, BZ2Decompressor
ModuleNotFoundError: No module named '_bz2'
Based on the comments and the /usr/local/sysopt path, I assume you've installed Python 3.7 from a source package.
When you did that, the Python configure script checked whether it has the bits to compile the bz2 module, and as you didn't have bzip2-devel installed during that time, the builtin bz2 module didn't get compiled.
You will need to recompile and reinstall Python 3.7 to get it included. At that point, you may also want to pay heed to any other optional modules that inadvertently don't get installed; sqlite3 tends to usually be one that ends up missing!
Related
I'm trying to use w3af to start doing some routine security testing on a webapp that I'm using. Install instructions recommend cloning a git repo, then running the python code and seeing what dependencies are unmet then installing them. My first run yielded:
ModuleNotFoundError: No module named 'ConfigParser
OK, no problem, right?
$ pip install ConfigParser
Collecting ConfigParser
Downloading configparser-5.2.0-py3-none-any.whl (19 kB)
Installing collected packages: ConfigParser
Successfully installed ConfigParser-5.2.0
Mission accomplished, let's try again!
$ ./w3af_console
Traceback (most recent call last):
File "./w3af_console", line 12, in <module>
from w3af.core.controllers.dependency_check.dependency_check import dependency_check
File "/Users/westonx/bin/w3af/w3af/core/controllers/dependency_check/dependency_check.py", line 26, in <module>
from w3af.core.data.db.startup_cfg import StartUpConfig
File "/Users/westonx/bin/w3af/w3af/core/data/db/startup_cfg.py", line 22, in <module>
import ConfigParser
ModuleNotFoundError: No module named 'ConfigParser'
Hmmm. Could swear we took care of that. Let's run pip (maybe pip3?) again to be sure?
$ pip3 install ConfigParser
Requirement already satisfied: ConfigParser in /Users/westonx/.pyenv/versions/3.8.2/lib/python3.8/site-packages (5.2.0)
Seems good. Let's check to see if the import path includes that directory:
$ python -c "import sys; print('\n'.join(sys.path)); import ConfigParser;"
/Users/westonx/.pyenv/versions/3.8.2/lib/python38.zip
/Users/westonx/.pyenv/versions/3.8.2/lib/python3.8
/Users/westonx/.pyenv/versions/3.8.2/lib/python3.8/lib-dynload
/Users/westonx/.pyenv/versions/3.8.2/lib/python3.8/site-packages
Traceback (most recent call last):
File "<string>", line 1, in <module>
ModuleNotFoundError: No module named 'ConfigParser'
So... we know the sys.path includes the directory pip says the module is installed in, but when we import it, python insists it's not there.
configparser-5.2.0.dist-info and configparser.py are indeed in my ~/.pyenv/versions/3.8.2/lib/python3.8/site-packages directory, so it doesn't look like pip telling me something that's not true. But it sure looks like python is.
I'm using pyenv on MacOS 10.14, not sure if that makes a difference. Anyone have ideas of what next steps should be?
ConfigParser is a built in library in Python, but its name was changed to configparser in Python 3. It appears like w3af is still using Python 2 (I found this check that actively states it, but you never even got that far). So, to run this code, you need to run it with Python 2.
There are very many (thousands) of python3 compatibility issues with the w3af codebase. The ConfigParser issue is just the first one you hit - the codebase is full of references to outdated / unmaintained libraries, and has no support for python3 byte strings vs. unicode strings (b"" vs ""), which are used throughout the codebase.
There is a w4af project on Github, where someone has made the effort to port all the w3af code to python3, but you didn't hear that from me.
I have apache ampps which comes with version 3.6.1 of python.
I was given various directions for installing pip.
None seemed to work.
For example,
link https://packaging.python.org/tutorials/installing-packages/
says that I can run:
python -m pip install -U pip setuptools
Get a whole bunch of errors. It might amount to: no module named queue.
Similar errors happen when I download the file they mentioned (get-pip.py) and run it from python.
Now, when I look at directions for installing queue, some point me to use pip. But when I try to install pip, it is complaining that queue is not there....
Hmmm...?
Now what?
ERROR:
File "C:\Users\Nima\AppData\Local\Temp\tmp1v2hpnae\pip.zip\pip\compat\__init__.py", line 11, in <module>
File "C:\Program Files (x86)\Ampps\python\lib\logging\config.py", line 30, in <module>
import logging.handlers
File "C:\Program Files (x86)\Ampps\python\lib\logging\handlers.py", line 28, in <module>
import queue
ModuleNotFoundError: No module named 'queue'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "getpip.py", line 20061, in <module>
main()
File "getpip.py", line 194, in main
bootstrap(tmpdir=tmpdir)
File "getpip.py", line 82, in bootstrap
import pip
File "C:\Users\Nima\AppData\Local\Temp\tmp1v2hpnae\pip.zip\pip\__init__.py", line 26, in <module>
File "C:\Users\Nima\AppData\Local\Temp\tmp1v2hpnae\pip.zip\pip\utils\__init__.py", line 22, in <module>
File "C:\Users\Nima\AppData\Local\Temp\tmp1v2hpnae\pip.zip\pip\compat\__init__.py", line 13, in <module>
File "C:\Users\Nima\AppData\Local\Temp\tmp1v2hpnae\pip.zip\pip\compat\dictconfig.py", line 22, in <module>
File "C:\Program Files (x86)\Ampps\python\lib\logging\handlers.py", line 28, in <module>
import queue
ModuleNotFoundError: No module named 'queue'
From the format i see here.
Firstly, pip is an installer basically what you've confused yourself with is that pip = queue which is not the case. Pip is just a packager that helps you install packages. Queue is a different module
For your case here Queue is a part of multiprocessing module so you just put this at the top of your code:
from multiprocessing import Queue
and you do not need to add import pip into your code
hope that explained things better for you :)
This line:
python -m pip install -U pip setuptools
means use pip to upgrade the installations of pip and setuptools. Only works if you already have pip - which you probably do. It is a useful step to make sure your install environment is up to date, though.
pip does in places use queue. Note it's been renamed between python2 and python3 - if you have py3, which you claim, you have queue (it was Queue in py2). So I wonder if there's a version mismatch in something.
Windows installs always create problems. You might be safer installing and experimenting with a virtualenv so your experiments don't mess up the python install from the package you mention - ampps. There are plenty of notes on that elsewhere on stackoverflow... e.g. Python and Virtualenv on Windows
pip is already included in 3.6.1, but it is in subfolder Scripts.
it is not automatically a part of the path variable.
you have to change directory and run pip or you can change environment variable so that the location of pip becomes part of the path search.
I'm using Ubuntu 14.04. While I have to retain my "main" python install as 2.7.6, I need to install 2.7.9 to be able to use ssl.SSLContext, to get Flask to deal with HTTPS requests.
However, if I just do:
sudo make install
or
sudo make altinstall
in the Python-2.7.9 directory, I ultimately get:
make: *** [libinstall] Error 1
EDIT: this appears at the end of sudo make install:
...
Compiling /usr/local/lib/python2.7/xml/sax/saxutils.py ...
Compiling /usr/local/lib/python2.7/xml/sax/xmlreader.py ...
Compiling /usr/local/lib/python2.7/xmllib.py ...
Compiling /usr/local/lib/python2.7/xmlrpclib.py ...
Compiling /usr/local/lib/python2.7/zipfile.py ...
make: *** [libinstall] Error 1
So I installed it to a custom directory by modifying the call to ./config, which did not yield the libinstall error.
However, when I try to import Tkinter into Python 2.7.9 (running from the custom directory) I obtain:
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/repos/Python279/lib/python2.7/lib-tk/Tkinter.py", line 39, in <module>
import _tkinter # If this fails your Python may not be configured for Tk
ImportError: No module named _tkinter
If I just go ahead and install the vanilla way (i.e., to a non-custom directory) and simply ignore the libinstall error I get, upon importing Tkinter:
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/local/lib/python2.7/lib-tk/Tkinter.py", line 39, in <module>
import _tkinter # If this fails your Python may not be configured for Tk
ImportError: /usr/lib/python2.7/lib-dynload/_tkinter.so: undefined symbol: PyFPE_jbuf
Does anyone have any idea what is going on?
Following furas' suggestion, installing via the
Python 2.7 PPA maintained be Felix Krull worked spectacularly. Thanks Furas!
EDIT Some notes:
Because this PPA installs python2.7 (specifically v. 2.7.11, as of 1/29/2016), this obviated the need for a custom python install location
While the PPA website mentions that this doesn't include python-tk, provided you have installed it, python plays with it just fine (solving my problem)
First of all source code from a program must be configured, compiled, then installed. You can do this by:
./configure # Or ./config depending on the file name
make
make install
Second of all when you tried to import the module _tkinter you wanted to import the .py file which was called Tkinter.py
Try to use:
import Tkinter
I am trying to configure svn hook for email notification using mailer.py script from apache, but it always crash on import of svn libs. I try two ways of installing svn and python. I try to install everything manually using command line and use CollableNet installer that have preinstalled Python and all libs I need but result is the same.
Now I try to import one library from hole package that I need using python in command line and I have such response:
>>> import svn.core
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: No module named svn.core
I try to fix it using:
1) import sys; sys.path.append("C:\csvn\lib\svn-python\svn")
and
2) C:\csvn\lib\svn-python\svn>python "\__init__.py" install
But it didn't help.
For now I have no package with setup.py to install it.
I spend a lot of time on this task, and going crazy a little). Please give me any suggestion how to fix it.
I am trying to get Django running on a shared hosting account for which I have ssh access, but I have been having issues getting it working. When I first tried running django-admin.py, I received an error about the module 'functools' being missing. I had the hosting company install the functools package, but now I get the following traceback when I try to run django-admin.py.
Traceback (most recent call last):
File "manage.py", line 2, in <module>
from django.core.management import execute_manager
File "/usr/local/lib/python2.6/site-packages/Django-1.3-py2.6.egg/django/core/management/__init__.py", line 3, in <module>
from optparse import OptionParser, NO_DEFAULT
File "/usr/local/lib/python2.6/optparse.py", line 90, in <module>
from gettext import gettext
File "/usr/local/lib/python2.6/gettext.py", line 49, in <module>
import locale, copy, os, re, struct, sys
File "/usr/local/lib/python2.6/locale.py", line 98, in <module>
#functools.wraps(_localeconv)
AttributeError: 'module' object has no attribute 'wraps'
I opened a support ticket and was told by the company that they reinstalled Python 2.6, but that didn't change anything. I also tried with 2.4, which is also installed on the machine, but that resulted in the earlier ImportError: No module named functools error.
Does anybody have any ideas?
A likely cause is something shadowing the stdlib functools module. Do you have a functools.py alongside the main script (manage.py)? See what import functools; print functools.__file__ prints, inside manage.py (before any of the other imports.) If it doesn't print /usr/local/lib/python2.6/functools.py, there's probably a file shadowing the standard library module. If it does print that, something is wrong with that file, reinstalls notwithstanding.
this solution worked for me .
mv /usr/lib/python2.7/site-packages/pip* ./
yum reinstall python-pip
sudo pip install django
or try an another solution .
its too risky and this might not be a safest solution.but it worked fine for me .
uninstall pip.
pip uninstall pip
if you installed by get-pip.py .
python -m pip uninstall pip setuptools
navigate to the path.
/usr/lib/python2.7/site-packages/
and find out two pip directories pip and pip-6.0.8.dist-info.
remove both pip and pip-6.0.8.dist-info.
then try again.
yum install python-pip
or
python get-pip.py