I have installed the pyPdf module successfully using the command pip install pydf but when I use the module using the import command I get the following error:
enC:\Anaconda3\lib\site-packages\pyPdf\__init__.py in <module>()
1 from pdf import PdfFileReader, PdfFileWriter
2 __all__ = ["pdf"]
ImportError: No module named 'pdf'
What should I do? I have installed the pdf module as well but still the error does not go away.
This is a problem of an old version of pypdf. The history of pypdf is a bit compliated, but the gist of it:
Use pypdf>=3.1.0. All lowercase, no number. Since December 2022, it's the best supported version.
Install pypdf
$ sudo -H pip install pypdf
You might need to replace pip by pip2 or pip3 if you use Python 2 or Python 3.
Use pypdf
import pypdf
WARNING: PyPDF3 and PyPDF4 are not maintained and PyPDF2 is deprecated - pypdf is the way to go!
Three potential alternatives which are maintained:
pymupdf: uses mupdf
pikepdf: Uses qpdf
pdfminer.six: A pure Python project. Don't confuse it with the unmaintained pdfminer
I've had the same error popping up after installing pypdf via pip and trying to import it in IPython (I'm using python 3.5.2):
In [5]: import pyPdf
---------------------------------------------------------------------------
ImportError Traceback (most recent call last)
<ipython-input-5-a5780a4295f9> in <module>()
----> 1 import pyPdf
/home/mf/virtual_envs/pdfdataextract/lib/python3.5/site-packages/pyPdf/__init__.py in <module>()
----> 1 from pdf import PdfFileReader, PdfFileWriter
2 __all__ = ["pdf"]
ImportError: No module named 'pdf'
This was even after installing the pdf library using pip.
Luckily, there's a PyPDF2 library which works like a charm for me.
Use PyPDF2.
I've been using it in Python 3 (v3.5.2 to be precise), and it works quite well.
Here's a simple command that you can use to install PyPDF2.
sudo -H pip3 install PyPDF2
For using it:
from PyPDF2 import PdfFileReader
Let me know if you need any clarification.
Firstly, in your code you wrote:
from pdf import PdfFileReader, PdfFileWriter
Instead of:
from PyPDF2 import PdfFileReader, PdfFileWriter
Secondly use
pip3.x install pyPdf
instead of
pip install pyPdf if it will not work
I use pypdf2 , it work for me.
pip install pypdf2.
I use Ubuntu 16.04
I imported PDF library using python 3.8.5 as;
import PyPDF4
or
from PyPDF4 import PdfFileReader
it runs great.....
Your import code should read:
from pyPdf import PdfFileReader, PdfFileWriter
Related
I am a newbie with Python and I am going around in circles over python's inability to find a mod. In jupyter notebook here is what I get:
pip install pypdf2
Requirement already satisfied: pypdf2 in c:\users\stanleydenman\appdata\local\programs\python\python311\lib\site-packages (3.0.1)
Note: you may need to restart the kernel to use updated packages.
import pypdf2
import pypdf2
---------------------------------------------------------------------------
ModuleNotFoundError Traceback (most recent call last)
Cell In[2], line 1
----> 1 import pypdf2
ModuleNotFoundError: No module named 'pypdf2
So python acknowledges pypdf2 is installed, but cannot find it to import it? I
I have installed, and reinstalled python. I selected the option once to have environmental variables set, other times set them myself. Nothing makes a difference.
Environmental variable set as follows:
C:\Users\StanleyDenman\AppData\Local\Programs\Python\Python311\Scripts\site-packages;C:\Users\StanleyDenman\AppData\Local\Programs\Python\Python311\;C:\Users\StanleyDenman\AppData\Local\Microsoft\WindowsApps;C:\Users\StanleyDenman\AppData\Roaming\npm;C:\Users\StanleyDenman\AppData\Local\Microsoft\WindowsApps;C:\Program Files\Tesseract-OCR;
Tried with Anaconda, cmd line, and jupyter notebook. All the same result.
Try pip list to make sure it's installed.
I have Installed Python 3 (32bit) on Windows.
I have read this answer, but I can't install cv2 using
pip install opencv_python-3.4.1-cp37-cp37m-win32.whl and it gives error as
opencv_python-3.4.1-cp37-cp37m-win32.whl is not a supported wheel on this platform.
when I tried Python shell, and run the command import cv2 it doesn't give error,
but when I try it as import cv2 in IDLE terminal, then It gives error as
>>> import cv2
Traceback (most recent call last):
File "<pyshell#1>", line 1, in <module>
import cv2
ModuleNotFoundError: No module named 'cv2'
You could also install opencv in these three easy steps
Type py -m pip install opencv-python
In the same window type python or open IDLE python.
Now type import cv2.
there you go... simple and easy i hope it helps.
1)Download OpenCV from here
2)Extract the zip file to Root drive(mostly 'C'Drive)
3)Goto folder opencv\build\python\2.7\x86 and copy cv2 file to your main Python directory,
in my case Python directory is
C:\Users\Deshmukh Brothers\AppData\Local\Programs\Python\Python36-32\Lib\site-packages
and paste cv2 file there.
4)Run command as python -m idlelib and now it will prompt idle-shell.
5)now it will work as import cv2, it nothing occurred and cursor went to next line then it is successfully installed.
I am trying to import matplotlib.finance module in python so that I can make a Candlestick OCHL graph. My matplotlib.pyplot version is 2.00. I've tried to import it using the following commands:
import matplotlib.finance
from matplotlib.finance import candlestick_ohlc
I get this error:
warnings.warn(message, mplDeprecation, stacklevel=1)
MatplotlibDeprecationWarning: The finance module has been deprecated in mpl 2.0 and will be removed in mpl 2.2. Please use the module mpl_finance instead.
Then instead of using the above lines in python I tried using the following line:
import mpl_finance
I get this error:
ImportError: No module named 'mpl_finance'
What should I do to import candlestick from matplotlib.pyplot?
I've stopped using mpl_finance (and plotly) since they are too slow. Instead I've written an optimized finance plotting library, finplot, which I use to backtest up to 107 candles.
Here's a small example:
import yfinance as yf
import finplot as fplt
df = yf.download('SPY',start='2018-01-01', end = '2020-04-29')
fplt.candlestick_ochl(df[['Open','Close','High','Low']])
fplt.plot(df.Close.rolling(50).mean())
fplt.plot(df.Close.rolling(200).mean())
fplt.show()
Examples included show SMA, EMA, Bollinger bands, Accumulation/Distribution, Heikin Ashi, on balance volume, RSI, TD sequential, MACD, scatter plot indicators, heat maps, histograms, real-time updating charts and interactive measurements; all with sensible defaults ready for use.
I do dogfooding every day, drop me a note or a pull request if there is something you want. Hope you take it for a spin!
In 2020, one can now pip install mplfinance
What this warning tells you is that the finance module will be removed at some point.
At the moment you don't need to worry about this warning. It will only affect you when you update to a yet to be released version 2.2 of matplotlib, in which case you'll need to change your imports.
If you already want to be compatible with future versions now, you can download the mpl_finance module from
https://github.com/matplotlib/mpl_finance .
After having downloaded the files, you may install in the usual way,
python setup.py install
Alternatively you may try installing through pip,
pip install https://github.com/matplotlib/mpl_finance/archive/master.zip
The reason for this is that the people at matplotlib want to keep their code clean and not maintain a specialized sidepackage like this in the main code. They probably also do not want to maintain the package and spend resources on it, which can be better used in the core development.
Since mpl_finace is not on pip now, you may also want to use following command to install mpl_finance by pip:
pip install https://github.com/matplotlib/mpl_finance/archive/master.zip
mpl_finance is no longer part of matplotlib. Install the module directly from gitHub via pip
pip install https://github.com/matplotlib/mpl_finance/archive/master.zip
and import it with
from mpl_finance import candlestick_ohlc
Then it works the same as before.
There is a new version of matplotlib finance, with documentation, here:
https://pypi.org/project/mplfinance/
https://github.com/matplotlib/mplfinance
Install with: pip install --upgrade mplfinance
Or with: conda install -c conda-forge mplfinance
NOTE: The package name no longer has the dash or underscore:
It is now mplfinance (not mpl-finance, nor mpl_finance)
I'm working on google colab , i got the same problem . then what i did -for python3.6
import mpl_finance
from mpl_finance import candlestick_ohlc
Plotly.py, a web-browser based, interactive plotting module has finance plotting functions https://plot.ly/python/candlestick-charts/. And it is maintained.
Simply use pip install mpl_finance for Windows or pip3 install mpl_finance for Linux/Unix for installation.
Then use from mpl_finance import candlestick_ohlc to call the library in the Jupyter notebook!
Replace from matplotlib.finance import candlestick_ohlc with from mplfinance.original_flavor import candlestick_ohlc , That should work.
I'm trying to access my laptop webcam and from what I have seen, I need to use the cv2 package. I downloaded it from PyPi but the contents of the file seem to be missing a lot of content as it only has __init__.py, cv2.cp36-win32.pyd, and opencv_ffmpeg320.dll. So whenever I try use things such as VideoCapture and imwrite, it says it cannot find a reference to them.
When I run the application, I get the following error message:
ImportError: numpy.core.multiarray failed to import
Traceback (most recent call last):
File "C:/Users/RedCode/PycharmProjects/FunApps/ImageFile.py", line 1, in <module>
import cv2
File "C:\Users\RedCode\AppData\Local\Programs\Python\Python36-32\lib\site-packages\cv2\__init__.py", line 7, in <module>
from . import cv2
ImportError: numpy.core.multiarray failed to import
I have got the numpy package installed and imported but it didn't fix the issue so I'm guessing that's not the actual cause of the problem, so I'm certain it must have something to do with the cv2 package.
The code I'm using right now is as follows:
import cv2
import numpy
cv2.namedWindow("preview")
vc = cv2.VideoCapture(0)
if vc.isOpened(): # try to get the first frame
rval, frame = vc.read()
else:
rval = False
while rval:
cv2.imshow("preview", frame)
rval, frame = vc.read()
key = cv2.waitKey(20)
if key == 27: # exit on ESC
break
cv2.destroyWindow("preview")
I'm also using Python 3.6 and Windows 10 if that helps with anything.
How can I get my application to work?
In your case you can solve your problem by using the following command:
pip install -U numpy
Check existing package:
pip show numpy
And upgrade it via:
pip install numpy --upgrade
Check the path if you still got error:
> import numpy
> print numpy.__path__
You must install the latest version of numpy. Use the command pip install numpy --upgrade or you can just download the wheel file from http://www.lfd.uci.edu/~gohlke/pythonlibs/ . Just check for your python version and platform and download the necessary wheel file. Next use pip to install the wheel file.
I am trying to import matplotlib.finance module in python so that I can make a Candlestick OCHL graph. My matplotlib.pyplot version is 2.00. I've tried to import it using the following commands:
import matplotlib.finance
from matplotlib.finance import candlestick_ohlc
I get this error:
warnings.warn(message, mplDeprecation, stacklevel=1)
MatplotlibDeprecationWarning: The finance module has been deprecated in mpl 2.0 and will be removed in mpl 2.2. Please use the module mpl_finance instead.
Then instead of using the above lines in python I tried using the following line:
import mpl_finance
I get this error:
ImportError: No module named 'mpl_finance'
What should I do to import candlestick from matplotlib.pyplot?
I've stopped using mpl_finance (and plotly) since they are too slow. Instead I've written an optimized finance plotting library, finplot, which I use to backtest up to 107 candles.
Here's a small example:
import yfinance as yf
import finplot as fplt
df = yf.download('SPY',start='2018-01-01', end = '2020-04-29')
fplt.candlestick_ochl(df[['Open','Close','High','Low']])
fplt.plot(df.Close.rolling(50).mean())
fplt.plot(df.Close.rolling(200).mean())
fplt.show()
Examples included show SMA, EMA, Bollinger bands, Accumulation/Distribution, Heikin Ashi, on balance volume, RSI, TD sequential, MACD, scatter plot indicators, heat maps, histograms, real-time updating charts and interactive measurements; all with sensible defaults ready for use.
I do dogfooding every day, drop me a note or a pull request if there is something you want. Hope you take it for a spin!
In 2020, one can now pip install mplfinance
What this warning tells you is that the finance module will be removed at some point.
At the moment you don't need to worry about this warning. It will only affect you when you update to a yet to be released version 2.2 of matplotlib, in which case you'll need to change your imports.
If you already want to be compatible with future versions now, you can download the mpl_finance module from
https://github.com/matplotlib/mpl_finance .
After having downloaded the files, you may install in the usual way,
python setup.py install
Alternatively you may try installing through pip,
pip install https://github.com/matplotlib/mpl_finance/archive/master.zip
The reason for this is that the people at matplotlib want to keep their code clean and not maintain a specialized sidepackage like this in the main code. They probably also do not want to maintain the package and spend resources on it, which can be better used in the core development.
Since mpl_finace is not on pip now, you may also want to use following command to install mpl_finance by pip:
pip install https://github.com/matplotlib/mpl_finance/archive/master.zip
mpl_finance is no longer part of matplotlib. Install the module directly from gitHub via pip
pip install https://github.com/matplotlib/mpl_finance/archive/master.zip
and import it with
from mpl_finance import candlestick_ohlc
Then it works the same as before.
There is a new version of matplotlib finance, with documentation, here:
https://pypi.org/project/mplfinance/
https://github.com/matplotlib/mplfinance
Install with: pip install --upgrade mplfinance
Or with: conda install -c conda-forge mplfinance
NOTE: The package name no longer has the dash or underscore:
It is now mplfinance (not mpl-finance, nor mpl_finance)
I'm working on google colab , i got the same problem . then what i did -for python3.6
import mpl_finance
from mpl_finance import candlestick_ohlc
Plotly.py, a web-browser based, interactive plotting module has finance plotting functions https://plot.ly/python/candlestick-charts/. And it is maintained.
Simply use pip install mpl_finance for Windows or pip3 install mpl_finance for Linux/Unix for installation.
Then use from mpl_finance import candlestick_ohlc to call the library in the Jupyter notebook!
Replace from matplotlib.finance import candlestick_ohlc with from mplfinance.original_flavor import candlestick_ohlc , That should work.