I am trying to use the pyserial module in my python project, so i installed it with pip install pyserial. After doing that, I did import pyserial in my python interpreter and it gave me this error:
Pyserial appears in my pip list list, and when i do pip show pyserial it gives this result:
I think you're using a wrong import statement, import pyserial will give you and should give you the above error .
The correct import statement is import serial, so try this instead.
Always it's a good thing to read the documentation, you can read more about pyserial on the docs here
Pycharm has a different way to install packages. You shouldn't install them via pip. I'm not sure why pip doesn't always install packages properly is though.
Instead, you can install it by opening the tool page in the main menu. This is available for PyCharm 2021.1 and later.
View -> Tool Windows -> Python Packages -> Search
You can also open the project interpreter to install packages.
Settings (CTRL+ALT+S) -> Project_Name -> Python Interpreter -> + (symbol at bottom) -> Search
See this article for a more complete tutorial.
I fixed this problem in PyCharm by typing import serial and it gave me an option to auto-install it. I took that option, and it worked.
Related
I recently downloaded the xlsxwriter version 0.6.4 and installed it on my computer. It correctly added it to my C:\Python27\Lib\site-packages\xlsxwriter folder, however when I try to import it I get the error ImportError: No module named xlsxwriter. The traceback is File "F:\Working\ArcGIS\ArcGIS .py\Scripts\Append_Geodatabase.py".
However if I try to import numpy (I can't remember what numby is, however it is located in the same site-packages folder C:\Python27\Lib\site-packages\numpy) it has no problem.
Any idea of what could be causing this issue?
Thanks for the help.
Here are some easy way to get you up and running with the XlsxWriter module.The first step is to install the XlsxWriter module.The pip installer is the preferred method for installing Python modules from PyPI, the Python Package Index:
sudo pip install xlsxwriter
Note
Windows users can omit sudo at the start of the command.
Even if it looks like the module is installed, as far as Python is concerned it isn't since it throws that exception.
Try installing the module again using one of the installation methods shown in the XlsxWriter docs and look out for any installation errors.
If there are none then run a sample program like the following:
import xlsxwriter
workbook = xlsxwriter.Workbook('hello.xlsx')
worksheet = workbook.add_worksheet()
worksheet.write('A1', 'Hello world')
workbook.close()
I have the same issue. It seems that pip is the problem. Try
pip uninstall xlsxwriter
easy_install xlsxwriter
I managed to resolve this issue as follows...
Be careful, make sure you understand the IDE you're using! - Because I didn't.
I was trying to import xlsxwriter using PyCharm and was returning this error.
Assuming you have already attempted the pip installation (sudo pip install xlsxwriter) via your cmd prompt, try using another IDE e.g. Geany - & import xlsxwriter.
I tried this and Geany was importing the library fine. I opened PyCharm and navigated to 'File>Settings>Project:>Project Interpreter' xlslwriter was listed though intriguingly I couldn't import it! I double clicked xlsxwriter and hit 'install Package'... And thats it! It worked!
Hope this helps...
sudo pip install XlsxWriter
Make sure that X and W are in uppercase.
I am not sure what caused this but it went all well once I changed the path name from Lib into lib and I was finally able to make it work.
I installed it by using a wheel file that can be found at this location:
https://pypi.org/project/XlsxWriter/#files
I then ran pip install "XlsxWriter-1.2.8-py2.py3-none-any.whl"
Processing ./XlsxWriter-1.2.8-py2.py3-none-any.whl
Installing collected packages: XlsxWriter
Successfully installed XlsxWriter-1.2.8
in VSCode:
instead of activating your environment with script use python select interpreter
from VSCode(press ctrl + shift + p)
and then select your environment from the list (marked with recommended)
I found the same error when using xlsxwriter in my test.py application. First, check if you have xlsxwriter module installed or not.
sudo pip install xlsxwriter
Then check the python version you are using, The following worked for me
python2 test.py
Using this on Raspberry Pi 4. I had a similar issue. I followed the install step:
sudo pip install xlsxwriter
None of the IDEs could find the module. I had to use Add/Remove Software under preferences in the GUI, search for xlsxwriter, select one by clicking on it and make sure the box is checked, and then click apply, then select the other one (it showed two for me) and click apply for that one. After that, it worked fine.
I found this script (tutorial) on GitHub (https://github.com/amyoshino/Dash_Tutorial_Series/blob/master/ex4.py) and I am trying to run in my local machine.
Unfortunately I am having and Error
I would really appreciate if anyone can help me to run this script.
Perhaps this is something easy but I am new in coding.
Thank you!
You probably just need to pip install the dash-core-components library!
Take a look at the Dash Installation documentation. It currently recommends running these commands:
pip install dash==0.38.0 # The core dash backend
pip install dash-html-components==0.13.5 # HTML components
pip install dash-core-components==0.43.1 # Supercharged components
pip install dash-table==3.5.0 # Interactive DataTable component (new!)
pip install dash-daq==0.1.0 # DAQ components (newly open-sourced!)
For more info on using pip to install Python packages, see: Installing Packages.
If you have run those commands, and Flask still throws that error, you may be having a path/environment issue, and should provide more info in your question about your Python setup.
Also, just to give you a sense of how to interpret this error message:
It's often easiest to start at the bottom and work your way up.
Here, the bottommost message is a FileNotFound error.
The program is looking for the file in your Python37/lib/site-packages folder. That tells you it's looking for a Python package. That is the directory to which Python packages get installed when you use a tool like pip.
I've looked around and people seem to have similar problems but none described my case exactly, and solutions that worked for them didn't seem to work for me (or there was no answer to the question at all).
Using pycharm, after having installed opencv-python and opencv-contrib-python I noticed that import cv2 works, but when I tried accessing cv2.imread() pycharm complained about not being able to find it.
So I went to the cv2 init file, which looks like this:
import importlib
from .cv2 import *
from .data import *
# wildcard import above does not import "private" variables like __version__
# this makes them available
globals().update(importlib.import_module('cv2.cv2').__dict__)
Pycharm detects an unresolved reference on the from .cv2 import * line and I imagine the same problem happens on the last line - I tried doing the following in a python console:
import cv2
print(__version__)
But I got a NameError, which seems to confirm my suspicion.
As I wrote, I have tried installing opencv-contrib-python but that didn't seem to do anything and frankly I'm already out of ideas.
Notes:
- I'm on Windows 10 x64.
- I'm using Python 3.6 x64.
- I have a virtual environment set up on my Pycharm project.
I'm no expert but the following line worked for me:
import cv2.cv2 as cv2
Everything seems to work afterwards. Autocompletion is also back
Have you installed opencv via terminal?
For example, like this.
$ pip install opencv-python
$ pip install opencv-contrib-python
I also experienced the same problem.
If you use pycharm, you should install opencv via pycharm.
File -> Settings... -> Project interpreter -> +
I got this same issue. You need to try a couple of things.
You need to simply import cv2 instead of cv2.cv2. Simply write "import cv2"
If you have installed any other library such as cv before, then uninstall it first.
The library that we need to install is opencv-python
You need to install it via IDE not with the terminal. Steps are as follows:
File -> Settings -> (Click on your project) -> Project Interpreter -> + -> (Type opencv-python) -> Download and install it -> It should work now.
From Python Interpreter download the version of opencv-python 4.5.4.60 and opencv-contrib-python 4.5.5.64.
Im trying to download this project in python from github
and import it to eclipse ubuntu.
The interpreter of python is 3 and I noticed that after the git clone and running the setup.py, the output is in folder python 2.7 instead of python 3
And when I try to import scapy_http.http I get an exeption (probably the interpreter looking for it inside python 2.7 folder).
When I try to replace the interpreter to python 2.7 I get other exeption on import scapy.all
the import scapy suppose to come before import scapy_http
I installed scapy for python 3: pip3 install scapy-python3
So how can I import the scapy-http project to my eclipse project given the interpreter is python 3?
Thanks.
It should be ok if you did pip3 install scary-python3. It's a bit hard to tell exactly what's going on (please provide error messages, etc.) but I would suggest you try:
sudo python3 setup.py install
If you haven't already. The problem might be that you left off the 3 and thus it was stored in python 2 libraries.
I'm starting to learn about python development in a new project.
I got setup almost everything right, but only this import HTML that keeps given me some error that I don't know how to solve it.
import web
import json
from WebServer.forms import mainPageForm, addBugForm, addProblemForm, addProblemTypeForm, versionsDropdownForm,\
severitiesDropdownForm, problemTypesDropdownForm, problemsDropdownForm
import BugRecorderCore.controller as ctrl
import BugRecorderCore.validators as vdt
import datetime
import os
from BugRecorderCore.utils import concatenateString
import HTML
//...
I already tried to install HTML.py already, but still no success so far.
Any idea or advice about this issue ?
UPDATE
Following the suggestions from the answers below I got this message:
It looks like you are using anaconda, have you tried installing it the anaconda way?
conda install HTML
Also do you by any chance have 2 version of Python on your system?
If the package is unavailable you'll have to user pip. If you don't have pip, from your command line write:
python get-pip.py
pip install HTML
Looking the given screenshots and tags I suppose your are using Anaconda (which I have no experience but it is still Python, anyway) and the IDE is not resolving the import.
Make sure you have installed/updated HTML.py
conda install HTML
At your IDE go to Window > Preferences > Python Interpreter
At Libraries tab make sure you have the following folders added to your PYTHONPATH:
C:\Anaconda\Lib
C:\Anaconda\Lib\site-packages
C:\Anaconda\Scripts
That should do the trick.
Important: try to always install your libraries through conda (or pip when using Python directly). It will install things where it should be. ;)