I am having the error while running jupyter notebook. Error replication:
python --version
Python 3.7.9
python
import win32api
The error was: ImportError: DLL load failed
After doing a some stackoverflow, I got to know that there are 2 dll files missing namely: pythoncom37.dll and pywintypes37.dll
I also got to know that I can run this post command: pywin32_postinstall.py in the Scripts folder. I ran this script. Restarted my pc. I manually download these two dll and copied it to my system32. After manually downloading, I started to have a different type of error: ImportError: DLL load failed: %1 is not a valid Win32 application
I used anaconda and ran my jupyter notebook which was my main aim but can you please make me aware as what is going wrong?
I've run into this recently, but with a different version of the DLLs. What solved it for me was using a different version of pywin32.
My solution (conda env, python 3.8.5):
pip install pywin32==300
or try 225, 227, 228. The latest pywin32 (301 as of this post) seems to be having dll search issues (I wouldn't be surprised if whatever version you were using is also having dll search issues). 301 was released after your issue started, but you may have a similar problem nonetheless.
There is currently an issue on pywin32 DLL loading failing: https://github.com/mhammond/pywin32/issues/1709
Factors involved (in my experience) include your PATH variable (if you're using conda). I haven't tested it myself, but I'd be curious to see if this issue occurs without conda. This issue stops happening for me if the first dlls found are those for 301. In my case, that means putting them in my C:\Windows\System32 folder (yeah I'm on Windows; joy).
So a possible solution #2 would be to run the pywin32 post install script which should be located under your venv/Scripts/pywin32_postinstall.py
To try that solution, open an ADMIN command prompt (very important that it's admin), navigate to your venv, and run:
ppython.exe Scripts\pywin32_postinstall.py --install
You shouldn't HAVE to do this, but if you just need a one-off solution and it works, great!
pip install --upgrade pywin32 ==225 worked for me. Tried version 300 and was unsuccessful.
I'm trying to convert a fairly simple Python program to an executable and couldn't find what I was looking for, so I have a few questions (I'm running Python 3.6):
The methods of doing this that I have found so far are as follows
downloading an old version of Python and using pyinstaller/py2exe
setting up a virtual environment in Python 3.6 that will allow me to do 1.
downloading a Python to C++ converter and using that.
Here is what I've tried/what problems I've run into.
I installed pyinstaller before the required download before it (pypi-something) so it did not work. After downloading the prerequisite file, pyinstaller still does not recognize it.
If I'm setting up a virtualenv in Python 2.7, do I actually need to have Python 2.7 installed?
similarly, the only python to C++ converters I see work only up until Python 3.5 - do I need to download and use this version if attempting this?
Steps to convert .py to .exe in Python 3.6
Install Python 3.6.
Install cx_Freeze, (open your command prompt and type pip install cx_Freeze.
Install idna, (open your command prompt and type pip install idna.
Write a .py program named myfirstprog.py.
Create a new python file named setup.py on the current directory of your script.
In the setup.py file, copy the code below and save it.
With shift pressed right click on the same directory, so you are able to open a command prompt window.
In the prompt, type python setup.py build
If your script is error free, then there will be no problem on creating application.
Check the newly created folder build. It has another folder in it. Within that folder you can find your application. Run it. Make yourself happy.
See the original script in my blog.
setup.py:
from cx_Freeze import setup, Executable
base = None
executables = [Executable("myfirstprog.py", base=base)]
packages = ["idna"]
options = {
'build_exe': {
'packages':packages,
},
}
setup(
name = "<any name>",
options = options,
version = "<any number>",
description = '<any description>',
executables = executables
)
EDIT:
be sure that instead of myfirstprog.py you should put your .pyextension file name as created in step 4;
you should include each imported package in your .py into packages list (ex: packages = ["idna", "os","sys"])
any name, any number, any description in setup.py file should not remain the same, you should change it accordingly (ex:name = "<first_ever>", version = "0.11", description = '' )
the imported packages must be installed before you start step 8.
Python 3.6 is supported by PyInstaller.
Open a cmd window in your Python folder (open a command window and use cd or while holding shift, right click it on Windows Explorer and choose 'Open command window here'). Then just enter
pip install pyinstaller
And that's it.
The simplest way to use it is by entering on your command prompt
pyinstaller file_name.py
For more details on how to use it, take a look at this question.
There is an open source project called auto-py-to-exe on GitHub. Actually it also just uses PyInstaller internally but since it is has a simple GUI that controls PyInstaller it may be a comfortable alternative. It can also output a standalone file in contrast to other solutions. They also provide a video showing how to set it up.
GUI:
Output:
Alternatively use pyinstaller directly:
pip install pyinstaller
pyinstaller filename
I can't tell you what's best, but a tool I have used with success in the past was cx_Freeze. They recently updated (on Jan. 7, '17) to version 5.0.1 and it supports Python 3.6.
Here's the pypi
https://pypi.python.org/pypi/cx_Freeze
The documentation shows that there is more than one way to do it, depending on your needs.
http://cx-freeze.readthedocs.io/en/latest/overview.html
I have not tried it out yet, so I'm going to point to a post where the simple way of doing it was discussed. Some things may or may not have changed though.
How do I use cx_freeze?
Now you can convert it by using PyInstaller. It works with even Python 3.
Steps:
Fire up your PC
Open command prompt
Enter command pip install pyinstaller
When it is installed, use the command 'cd' to go to the working directory.
Run command pyinstaller <filename>
I've been using Nuitka and PyInstaller with my package, PySimpleGUI.
Nuitka
There were issues getting tkinter to compile with Nuikta. One of the project contributors developed a script that fixed the problem.
If you're not using tkinter it may "just work" for you. If you are using tkinter say so and I'll try to get the script and instructions published.
PyInstaller
I'm running 3.6 and PyInstaller is working great!
The command I use to create my exe file is:
pyinstaller -wF myfile.py
The -wF will create a single EXE file. Because all of my programs have a GUI and I do not want to command window to show, the -w option will hide the command window.
This is as close to getting what looks like a Winforms program to run that was written in Python.
[Update 20-Jul-2019]
There is PySimpleGUI GUI based solution that uses PyInstaller. It uses PySimpleGUI. It's called pysimplegui-exemaker and can be pip installed.
pip install PySimpleGUI-exemaker
To run it after installing:
python -m pysimplegui-exemaker.pysimplegui-exemaker
The best and easiest way is auto-py-to-exe for sure, and I have given all the steps and red flags below which will take you just 5 mins to get a final .exe file as you don't have to learn anything to use it.
1.) It may not work for python 3.9 on some devices I guess.
2.) While installing python, if you had selected 'add python 3.x to path', open command prompt from start menu and you will have to type pip install auto-py-to-exe to install it. You will have to press enter on command prompt to get the result of the line that you are typing.
3.) Once it is installed, on command prompt itself, you can simply type just auto-py-to-exe to open it. It will open a new window. It may take up to a minute the first time. Also, closing command prompt will close auto-py-to-exe also so don't close it till you have your .exe file ready.
4.) There will be buttons for everything you need to make a .exe file and the screenshot of it is shared below. Also, for the icon, you need a .ico file instead of an image so to convert it, you can use https://convertio.co/
5.) If your script uses external files, you can add them through auto-py-to-exe and in the script, you will have to do some changes to their path. First, you have to write import sys if not written already, second, you have to make a variable for eg, location=getattr(sys,"_MEIPASS",".")+"/", third, the location of example.png would be location+"/example.png" if it is not in any folder.
6.) If it is showing any error, it may probably be because of a module called setuptools not being at the latest version. To upgrade it to the latest version, on command prompt, you will have to write pip install --upgrade setuptools. Also, in the script, writing import setuptools may help. If the version of setuptools is more than 50.0.0 then everything should be fine.
7.) After all these steps, in auto-py-to-exe, when the conversion is complete, the .exe file will be in the folder that you would have chosen (by default, it is 'c:/users/name/output') or it would have been removed by your antivirus if you have one. Every antivirus has different methods to restore a file so just experiment if you don't know.
Here is how the simple GUI of auto-py-to-exe can be used to make a .exe file.
PyOxidizer can be an option here. It's pretty popular with 3.3k stars on Github. Its documentation says
PyOxidizer is capable of producing a single file executable - with a copy of Python and all its dependencies statically linked and all resources (like .pyc files) embedded in the executable. You can copy a single executable file to another machine and run a Python application contained within. It just works.
While I'm not sure if it is capable of producing .exe file PyOxidizer definitely helps with packaging and distribution.
I've been having a problem with installing packages in PyCharm. This started happening a few months ago, but before that it was fine. I can install it from the cmd using pip, but when I try to import it into the IDE it gives this error:
ModuleNotFoundError: No module named '_winreg'
and isn't available for use. The package I'm trying to install right now is pygame, but it has had trouble with other ones. I tried to make sure I have winreg installed by using 'pip3 install winreg' in the cmd, but it gives error text saying, "Could not find a version that satisfies the requirement winreg." What am I doing wrong?
Also, if it helps, I'm using Windows and the latest version of PyCharm, as well as python 3. Thanks for the help, I've been looking for a while now.
I think one of your problems possibly is that you didn't add pygame in your project interpreter. (To add it go to File -> Settings -> Project Interpreter then click the green plus sign and search for pygame.) I don't know if this will work for winreg, but tell me if it does.
I can't find _winreg anywhere, I've searched winreg's file, and modules , there don't seems like any of _winreg. I think you probably want to import winreg, not _winreg.
And also, if you are using PyCharm's venv, you need to use the project's prompt to import,or project interpreter.
Could not find a version that satisfies the requirement sometime means your python's version is too new for the module to use.
I wanted to use the code:
import geodict_lib
locations = geodict_lib.find_locations_in_text(text)
But there seems to be no installer for geodict_lib. How do I install this is Anaconda 3.0 Python 3?
I know this is a year on, but perhaps I could help others who stumble on this. You'll need to place the files in the directory for modules that your installation of Python is monitoring.
First, download the .zip file from GitHub here.
Once you've done that, you can run the following at the command line or terminal:
conda list
This will provide the path to all installed packages in your installation of Python. Move the geodict.zip file you downloaded to that location. You might want to run which python as well (see here) since you may have a few different installations to check for.
Now when you run python import geodict in Python it should run without trouble!
I'm trying to install SIP on my computer so I can proceed to get PyQt. I put the install files in a folder on my desktop ('C:\Users\User\Desktop\Programming\Sip\sip-4.15.5'). So, to install it, I ran the following commands from CMD:
cd C:\Python33
python "C:\Users\User\Desktop\Programming\Sip\sip-4.15.5\configure.py"
The version of python in 'C:\Python33' IS the one used in the command 'python'. Here's the output I got:
This is SIP 4.15.5 for Python 3.3.5 on win32.
The SIP code generator will be installed in C:\Python33.
The sip module will be installed in C:\Python33\Lib\site-packages.
The sip.h header file will be installed in C:\Python33\include.
The default directory to install .sip files in is C:\Python33\sip.
The platform/compiler configuration is win32-msvc2010.
Creating siplib\sip.h...
Creating siplib\siplib.c...
Creating siplib\siplib.sbf...
Creating sipconfig.py...
Creating top level Makefile...
Creating sip code generator Makefile...
Creating sip module Makefile...
Error: Unable to open
"C:\Users\User\Desktop\Programming\Sip\sip-4.15.5\siplib\siplib.sbf"
Now, the key lines are obviously the last two, so I looked in the appropriate folder and found that there was a rather good reason for the error: there is no "siplib.sbf." The closest it gets is "siplib.sbf.in". What on earth is going on? If this is a stupid question, please feel free to tell me so.
You must change current working directory to the sip-4.15.5 first:
cd C:\Users\User\Desktop\Programming\Sip\sip-4.15.5
python configure.py