I'm new to programming and python and, wanted to try pygame but when I put import pygame, I get:
Unused import statement 'import pygame'
I'm using python 3.10.6, what pygame should I install?
I am not sure where that error message is coming from. Probably your IDE, because Python itself won't complain about unused imports.
It sounds like you have typed import pygame which makes the pygame module available for you to call (once you install it), but haven't typed any code that uses pygame.
For example, I would expect your code to include pygame.init() somewhere, because all pygame clients need to do that to prepare it.
Once your code actually uses pygame, and doesn't just import it, the error should go away.
If you want to use any Python package in the code you need to install it.
To install any package, use the following command:
pip install <package name> # for eg: pygame
After that, you can use it anywhere in the program.
Also, please be sure that you are in a proper virtual environment or in a global environment.
To create a new virtual environment, follow the below solution.
Create Virtual Environment The system cannot find the path specified
Related
I have installed Python 3.10.6 and Pycharm community edition.
Everything was working until I tried to use numpy.
pip3 install numpy
import numpy as np
This is the error message:
pip3 install numpy
^^^^^^^
SyntaxError: invalid syntax
I also have tried to use pip install numpy and pip2 install numpy and pip3 install numpy scipy, but same error. Reinstalling both python and pycharm didn't help.
Ah, I understand your problem more specifically now. I also use PyCharm, and this same problem happened to me. It was very frustrating, and took me lots of reading to fix it.
PyCharm and other IDEs (integrated development environment) have something called 'run configurations' attached to each file you are working on. These run configurations basically specify which directory on the hard drive the file will use to read and execute your commands. The directory will contain the libraries you need to run your code.
They use these configurations to make it easy to quickly choose which directory (and which libraries) you want a certain file to use. You must specify these configurations in PyCharm for your specific file to run using Numpy. The great thing about PyCharm is that you can actually specify libraries you want to use within the IDE itself (and bypass having to specify a computer-native directory).
Here's How
Go to PyCharm Preferences
Expand the arrow that says 'Project: (your project name)'
Click on 'Python Interpreter'
Click the small '+' symbol
Type in 'numpy' to search for the library (package)
Click install package
Now try to run your file and it should be good to go!
Note that you must do this for each package you wish to use when accessing your file, and as you advance your programming knowledge it will be necessary to learn how to specify the directory you want PyCharm to run the Python Interpreter from. Since you are only using one library though, I think this solution should be fine for the time being.
You should install numpy with that command in your bash/zsh shell.
pip3 install numpy
the python script can then import it.
to test, run pip3 install numpy
then,
python to open a python shell.
and then you'll see
>>>
Type import numpy as np and be sure it imports. It should now.
It can be maddeningly confusing when first starting out with python and trying to figure out how to download libraries. Here are a few critical things I wish I understood before starting my Python journey, as well as the answer to your question.
Python is the language, and the files that support its functionality are located on the hard drive.
Libraries (like Numpy) can be thought of almost as interpreters (note that we are not using the computer definition of 'interpreter') and are stored alongside the Python files on the hard drive. They give Python more flexibility in terms of what it is able to do by increasing what commands Python is able to understand.
Once a library is downloaded, it must be imported to your Python script before you start writing library-specific commands. Importing a library tells Python: "Hey, I'm going to be writing some commands that you haven't seen before, but here is the library with the commands and what they want you to do in a way that you understand."
'pip' is Python's installer for these libraries.
Ex) I have a csv file that I want to read. I learn that Pandas has a csv reader function:
pandas.read_csv()
If I were to type this function in a script, Python would have no idea what I meant. But if I were to download Pandas, then import it into my script, Python would understand exactly what I'm saying.
How to Download Numpy
Assuming you are on Windows, open the terminal (command prompt) and run the command:
py -m pip install numpy
If you don't already have it, the terminal should have a few lines run and should end with something like 'numpy installed successfully'.
You can check to see if you have it by running the following command in your terminal:
py -m pip list
This command provides you with a list of all the downloaded libraries. You can check among them to make sure Numpy is downloaded.
Importing Libraries
Once you've downloaded the libraries you need, you need to import them into your script (the Python file where you are writing your code) in order for it to run properly. This is accomplished using the import command. One important thing to note is that you can import libraries and assign them a nickname using the as modifier.
Ex) Back to that csv file I want to read. I don't want to type 'pandas' in front of all the Pandas commands, so when I import it into the script I abbreviate it as 'pd':
import pandas as pd
pd.read_csv()
See the difference?
TL;DR for Your Scenario
Go to the terminal, and use the py -m pip list command to check if you have Numpy downloaded. If not, run the py -m pip install numpy command. Then go to your script with your actual python code, and import numpy with the import numpy command. Common Python practice is to import numpy as np, FYI.
Hope this clears things up.
It may say that you need to upgrade pip, which is fine, and it should give you a command to run that will upgrade pip to the newest version.
Im getting nowhere with the following error on my Raspberry Pi:
My own Python script calls a function from another module named BlackBean.py which in turn imports other modules called "netaddr" and "configparser". The problem is that I just cant seem to get past the import error which tells me " No Module named netaddr, or if I comment out that import then it also errors with No Module named configparser. So I know its a path issue but I just cant seem to get it fixed!
The Blackbean.Py script starts like this:
import broadlink
import ConfigParser
import sys, getopt
import time, binascii
import netaddr
import BlackBeanSettings
import re
from os import path
from Crypto.Cipher import AES
SettingsFile = ConfigParser.ConfigParser()
SettingsFile.optionxform = str
SettingsFile.read(BlackBeanSettings.BlackBeanControlSettings)
def execute_command(etc.........
The BlackBean.py file is in my project SkyHD folder at /home/pi/SkyHD.
The "netaddr" and "configparser" files & folders were installed by pip in /home/pi/.local/lib/python2.7(and python3.5)/site-package folders.
sys.path has the above folders in its list and Ive also edited .bashrc and added PYTHONPATH=${PYTHONPATH}:/home/pi/.local/lib/python2.7/site-package:/home/pi/.local/lib/python3.5/site-package:/home/pi/SkyHD:../
but none of this works. I guess it must be something basic but I just cant work it out! help!
Also, some more info, when I first install all the files and run my program everything works fine and it finds the files ok with no problems, its only when I reboot it fails to find the files.
Its fixed.
Python looks for imported modules in 3 places, the first being the folder you launched the python script from; so for me the obvious answer is to import the modules I need directly into my own Project folder (/home/pi/myproject). This worked just fine, it works every time even after reboot, which was my main problem before. No need to create or alter PYTHONPATH, no need to mess around with entries in .bashrc or try to change the python path entries. Here are the steps:
Upgrade PIP to version 9.0.3 (not ver 10) with
pip install --upgrade pip==9.0.3
then install the required modules with the following
pip install --target=/home/pi/your_project_folder module_name
so for me it was... pip install --target=/home/pi/SkyHD netaddr
Im sure this is not best practice, but my Raspberry Pi only has this one project to run and having modules imported into the Projects folder just isnt an issue.
Hope this helps some others with the same problem.
You've provided insufficient information. Specifically, details about the python command being used to run your script such as its version (python -V) and its module search path if you do
env -u PYTHONPATH python -c 'import sys; print(sys.path);'
Similarly you can easily simplify the problem. What happens if you do python -m netaddr?
Obviously in the above commands substitute the actual python command being used to run your script.
And, as #BoarGules mentioned in his comments to your question, you should never, ever add directories to PYTHONPATH for different python versions unless you know that the modules in those directories has been written to work with python2 and python3.
Basically, i'm trying to use the turtle module at home as I have been using it in school and it's quite fun to use. However, when I try to import it and run the code, it says that there is an error in line 1 of the code and says that no module named pygame was found. I didn't write pygame, I specifically wrote
from turtle import *
which at school works perfectly fine. Both my computer and the school computers use Python 3.6 but the turtle module will just not work at home. Any ideas why this might be happening? If it helps, I've tried to install pygame in the past but it wouldn't work so I stopped trying to install it, and just now I tried deleting and uninstalling pygame but it still shows up with the error. Thanks for taking your time to read my question.
The error that comes up is as follows:
Traceback (most recent call last):
File "C:/Users/homeuser/AppData/Local/Programs/Python/Python36-32/jsjs.py", line 1, in <module>
from turtle import *
File "C:/Users/homeuser/AppData/Local/Programs/Python/Python36-32\turtle.py", line 1, in <module>
import pygame
ModuleNotFoundError: No module named 'pygame'
>>>
Also, pip install pygame comes up with an error saying invalid syntax
First, you need to download the version of pygame suitable for your version of python. Here's a link to their download page: https://pypi.python.org/pypi/Pygame/1.9.3
Next, open the command prompt. This technique works provided that you have pip installed and you have the required environmental variables.
Now, type in the following into the command prompt: 'python -m pip install "Path/To/Downloaded/File.py"'
Here's a real-life example: 'python -m pip install "C:/Users/danie/Downloads/pygame-1.9.3-cp36-cp36m-win_amd64.whl"'
If you have any errors, it would most likely because:
- (A) You don't have pip installed properly.
- (B) You gave an invalid directory branch.
- (C) You spelled something in the command wrong.
- (D) You forgot to download the Pygame module.
I hope this helps.
Pygame should be a dependency of turtle. Try to download pygame with pip.
More information about the installation:
https://www.pygame.org/wiki/GettingStarted
You've been working inside a Python standard library directory, placing your own files there and clobbering Python's insides. The error you're seeing is because you've edited or replaced the turtle.py from the standard library. At this point, there's no telling how much damage has occurred, and manually fixing things isn't going to be practical.
Uninstall and reinstall Python to restore things to normal, and stop putting your own work in that directory.
Seeing the error code you've posted, it seems that some files placed in the python directory have been messed with or there must have been some changes. Nevertheless, You can try doing an uninstall and then doing a clean install of python.
Then proceed to download pygame by:
pip install pygame
and then turtle module. You may have to look up for the Tkinter module too.
I am using Linux Mint 17 (Ubuntu 14.04) and already got pygame 1.9.2 working in Eclipse on my Windows PC. Now I also installed it on this machine, but it doesn't work. Thus there is no apt-get for python3-pygame I downloaded the source from https://bitbucket.org/pygame/pygame and built and installed it without getting errors.
When running the following on the command line I receive no error:
import pygame
pygame.init()
If I try the same in an Eclipse PyDev project I get the error: "Undefined variable from import: init".
First I thought that my Interpreter was not set up correctly, but the path where pygame is installed is added to the libraries (/usr/local/lib/python3.4/dist-packages). I realized that for Python2.7 pygame is installed in /usr/lib/pytho2.7/dist-packages instead, but this directory doesn't exist for python3.4 on my machine.
Since it seems to work on the command-line it must have something to do with the Eclipse or Pydev settings, right?
UPDATE:
Ok, now things are getting really confusing. I found out that pygame indeed is also working from within eclipse if I run the project, but only giving me these error messages for eg. pygame.init(), pygame.QUIT, pygame.K_ESCAPE, pygame.KEYDOWN. I find it very strange, because pygame.time.Clock() or pygame.display.set_caption() don't give error messages. So I only get undefined variable from import errors (also see here How do I fix PyDev "Undefined variable from import" errors? ).
Use sudo pip3 install pygame, pip3 should work assuming you have python3 and setuptools installed.
You can install pip3 using sudo apt-get install python3-pip and then use sudo pip3 install package_name to get whatever you want.
The only thing which worked for me (I spent two days now finding out what the problem is) is to add "pygame" to the forced builtins for the Interpreter (Window -> Preferences -> PyDev -> Interpreter -> Python Interpreter -> Forced Builtins Tab -> New -> pygame.
This is only a workaround, but at least I am rid of those errors for now and auto-completion still works. I didn't find any other solution that worked for me so far.
For me the problem was resolved by importing *.
instead of:
import pygame
try this:
from pygame import *
now instead of calling init() by saying pygame.init() just use init()
also you should not have to explicitly call using pygame. for the most part.
NOTE: after playing around with this in Eclipse I did end up having to use both:
import pygame
from pygame import *
for whatever reason one of my functions only works if I have pygame.even.get()
but the test of my code does not need to use pygame.
(I am sure there is a perfectly good reason but I am still very new to python)
when I import pygame using eclipse on my mac, there's a import error:
However, I can still run this program correctly, So what can I do to fix it?
to quick fix you can do:
PyDev Package Explorer>right click your project>properties>PyDev - PYTHONPATH>External Libraries>Add source folder>PythonX.X(version where you installed pygame)/Lib/site-packages/pygame
this will include one external library for this project, but you should check if you are working with the right python version you installed.
I have 3 versions of python, pygame is only on Python2.6, so all my new projects that use pygame must have python2.6 syntax and interpreter python26.
To check your interpreter settings:
Window(menu)>Preferences>PyDev>Interpreter - Python>New>interpreter name you can put anything you may remember, interpreter executable find the python.exe and put the path there, OK.
Now you have added the entry for the interpreter, if you look down in the same window, into Libraries you can add many packages you want the interpreter to look for to resolve names and syntax.
They make Pygame for every version of Python. I have it for Python 3.4 it came out in March 2014. If you are getting the error there is no module named Pygame. It is because Pygame is not in Python's path or you have the wrong version of Pygame for your current version of Python. You can find more Pygame downloads here that arnt on pygame.org. Click on the blue word Pygame at the top and it will take you to the proper section of the page.
http://www.lfd.uci.edu/~gohlke/pythonlibs/
Download the one you need for your Python version. If you hold the mouse over it it should show more info about the version in a tiny pop up. I am on windows but it found the path by itself. I'm not sure if it will for mac.