I have a piece of code that is working:
from urllib2 import urlopen
html = urlopen("http://jr.jd.com")
print(html.read())
html.close()
My problem is I don't find "urllib2" package on my mac.
The python version is 2.7 (Apple built-in).
I tried pip list to list installed packages, but I found "urllib3" but not urllib2.
(I don't think the "urllib3" package includes "urllib2" by default - they works very differently. To use "urllib3", the first line of my code would have to change to from urllib3.request import urlopen.)
I tried pip show urllib3, and since I can find this package, the output is as expected:
Name: urllib3
Location: /usr/local/lib/python2.7/site-packages
Then I tried pip show urllib2, and there is nothing at the output! - I think this means I don't have the package "urllib2" installed? (then why my code works?)
Could someone explain how my code works while I can't find the "urllib2" package? Many thanks!
Related
Currently I have migrated my python2 django project to python 3 & after conversion to py3 I am getting below kind of error for below code.
from hubarcode.code128 import Code128Encoder
encoder = Code128Encoder(pur_num, {'is_reliable': False})
Trackeback is as below.
from hubarcode.code128 import Code128Encoder
File "D:\my_project\venv\lib\site-packages\hubarcode\code128__init__.py", line 16, in
from textencoder import TextEncoder
ModuleNotFoundError: No module named 'textencoder'
I have tried to search for solution online on google but not able to solve it.
Any suggestions ?
Thanks.
I am able to solve issue by using pyStrich.
First you need to install pyStrich using pip3 install pyStrich and after thatn
What you need to do is just replace from hubarcode.code128 import Code128Encoder with
from pystrich.code128 import Code128Encoder.
I hope it may help others who have been facing same kind of problem.
pip freeze will show it if you have this module installed in your venv
pip install textencoder to resolve problem
I am trying to import win32api in python 2.7.9. i did the "pip install pypiwin32" and made sure all the files were intalled correctly (i have the win32api.pyd under ${PYTHON_HOME}\Lib\site-packages\win32). i also tried coping the files from C:\Python27\Lib\site-packages\pywin32_system32 to C:\Python27\Lib\site-packages\win32. I also tried restarting my pc after each of these steps but nothing seems to work! i still get the error 'No module named 'win32api''
Well, turns out the answer is upgrading my python to 3.6.
python 2.7 seems to old to work with outside imports (I'm just guessing here, because its not the first time I'm having an import problem)
hope it helps :)
I'm trying to run a code in python2.7 on windows os that uses sentiment analysis
from vaderSentiment.vaderSentiment import SentimentIntensityAnalyzer
analyzer = SentimentIntensityAnalyzer()
and I'm getting this error
ImportError: No module named vaderSentiment
Can anyone help me with this?
Assuming you solved this one as it's from 7 months ago, but for anyone else searching for it:
Go into terminal/cmd and paste the following:
pip install vaderSentiment
More info on VADER: https://github.com/cjhutto/vaderSentiment
from vaderSentiment.vaderSentiment import SentimentIntensityAnalyzer
#note: depending on how you installed (e.g., using source code download versus pip install), you may need to import like this:
#from vaderSentiment import SentimentIntensityAnalyzer
read the comment in a code
Try running your file with Python3 instead of just python. Sometimes when you have different pips/pythons installed on your computer you might have vaderSentiment installed in python2 when you need to run it in python3.
I would like to have a script invoke numpy from a c++ embedded python runtime by setting the runtime path to know about the numpy module located within site-packages.
However I get the error:
cannot import name 'multiarray'
from \Lib\site-packages\numpy\core__init_.py on the line
from . import multiarrray
I have tried to set the os.path to be xxx\numpy\core but it still cannot seem to find the multiarray.pyd file during the import statement
I have read through similar questions posed but none of the answers seem relevant to my case.
I am using Python 3.4.4 (32 bit) and have installed Numpy 1.11.1 using the wheel
numpy-1.11.1-cp34-none-win32.whl
python -m pip install numpy-1.11.1-cp34-none-win32.whl
Completed without any errors.
Seems like the failure message maybe more general than just an incomplete PYTHONPATH?
Also think it might be broader than Numpy in that ANY .pyd based package that is imported from the embedded environment will have this problem?
Any help appreciated.
Did you ensure all your NumPy includes: \numpy\core\include\numpy\ were present during the build? That's the only time I get those types of errors was if the build couldn't find all the NumPy includes... although during embedding I found that the numpy entire directory (already built on your build machine) has to be inside a directory under Py_SetPath(python35.lib;importlibs); assuming importlibs is a directory with NumPy inside and anything else you want to bundle.
Seems like the answer was to install python 3.4.1 to match the python34.dll version of 3.4.1.
I tried looking for an answer to this around the forum/google, but I can't find anything. My issue is this (from python console):
>>> import pandas
cannot import name hashtable
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "C:\Python27\lib\site-packages\pandas\__init__.py", line 6, in <module>
from . import hashtable, tslib, lib
ImportError: cannot import name hashtable //also can't import name NaT somtimes
I ran the windows 1-click installer prior to attempting the import. I'm running everything 32-bit. The pandas installer is for python 2.7.
Here's a list of modules that I have correctly imported into Python.
setuptools
pip
mox
dateutil
six
numpy
SQLAlchemy
I'm on windows 7.
I also have anaconda installed, but that was really just a "hail mary" after I tried everything else. My end goal is to install the ultra-finance module. However, it seems to require pandas, hence me being stuck.
I'm a python noob, so please don't assume I know anything. Thanks.
EDIT: please let me know if I can provide any extra information.
The recommended way to install pandas is via pip:
pip install pandas
This hashtables error arises from the cython files not being built. This error message will be more informative from 0.11.1.
Try running your code in Spyder (Anaconda -> Spyder). It worked for me.
Check that you have python scripts included in your system path variable. In my case I had to add "C:\Python27\Scripts"
I was having a similar problem when downloading Pandas to my Windows 8 system. The first error I had was an egg error, but after installing some packages I think I have the solution.
First look at the previous pip errors with Pandas, make sure you have the most updated pip.
The second part is downloading wheel using
pip install wheel
After installing wheel and having the dependencies for panda and using pip it worked correctly.