I've made a python script that depends of numpy, cv2 and some other modules to run and need to run it on a Linux server where I'm not allowed to install anything.
Is there a way to join all that stuff into a single executable that runs without installing anything?
It sounds like you're looking for PyInstaller, which bundles all the modules your script depends on into a single program. It even includes Python itself. There are a few alternatives, some of which are listed on this page.
You could create a standalone executable using Nuitka. Assuming you have all required packages on your development machine you can run
nuitka --python-version=2.7 --standalone foobar
Just make sure you run it with the standalone flag and correct python version.
Related
I try to write a simple plugin with gimpfu in python and I tried following those instructions.
1.2. Installation
Gimp-python consists of a Python module written in C and some native python support modules. You can build pygimp with the commands:
./configure
make
make install
This will build and install gimpmodule and its supporting modules, and install the sample plugins in gimp's plugin directory.
Where do I have to execute those commands?
I tried adding my script to the plugins folder but it seems like there is no python module called gimpfu. I believe I have to enable or install it in some way, but I can't find a solutio to do it.
EDIT: It seems like gimpfu is availible in the gimpfy-console insode gimp. It just doesn't seem to be availible for my plugin scripts.
No need to install anything. In the Windows versions Python support is built-in, and the gimpfu import is available when your code is executed by Gimp.
If you don't see the plugin in the menu it is likely a syntax error that doesn't let it run its registration code. See here for some debugging techniques.
However, since you mention PyCharm, you may have another Python interpreter installed and this makes things complicated because there can be conflicts depending on order of installation (and remember, Gimp uses Python 2.7)
Now it all depends if you are really doing a plugin (called from the Gimp menu) or a batch (where Gimp is called from a shell script), which is somewhat different. If you are writing a batch, see this answer for an example.
you don't need to install anything, on windows gimp comes with a python interpreter along with the libraries inside of it.
if you want to run your script from inside GIMP then you should check this answer and you should add the path to gimp to your system PATH environment variable (which is C:\Program Files\GIMP 2\bin on my system) , and instead of calling gimp-console.exe you should replace that with whatever gimp-console is currently available in that folder, the one on my system is gimp-console-2.10.exe.
I am currently starting a business where I will be providing support to clients directly on their business offices. I need to be able to go to different computers and be able to run custom python scripts, my question is if there's a way to make my python environment portable?
Assuming that your users are running Windows, I see two options here.
If you have already defined which scripts you will be running, compile them into exe files using py2exe, that way you can just plug a USB and run them as needed. (the caveat is that some antivirus will automatically block the unsigned executables)
The other option is to use WinPython, that is a full python environment with a lot of packages already preinstalled that ives in it's own directory. In case you need to install a new package, just use the Powershell or CMD that comes with it and use the preinstalled "pip".
I found something interesting here Portable Python. I use that method to create portable Python 3.9 and 3.10 and everything works so have a look.
I created a Python script for a Freelance job and I can't find how to compile/build/package it for easy sharing. The person for which I created it is not a technical one, so I can't explain him how to activate a virtualenv, install requirements and so on.
What is the easiest way for him to run the project right after downloading it?
Can the whole virtualenv be compiled into an .exe? If yes, can this be done inside a macOS system?
Yes you can package your python programs and it's dependencies with
Cx_Freeze
There are other python modules that do the same, personally i prefer cx_Freeze because it's cross platform and was the only one that worked out of the box for me.
By default cx_Freeze automatically discovers modules and adds them to the exe to be generated. but sometimes this doesn't work and you might have to add them by yourself
To create a simple executable from a file. you can just use the bundled cxfreeze script
cxfreeze hello.py --target-dir dist
but more for more complex applications that have different files you'll have to create a distutils setup script.
Note that cx_freeze doesn't compile your code like a traditional compiler. it simply zips your python files and all it's dependencies ( as byte code) together, and includes the python interpreter to make your program run. So your code can be disassembled. (if anyone wants to) and you'll also notice that the size of your program would be larger than it was initially (Because of the extra files included)
I ended up using PyInstaller as this worked out of the box for me.
So I have been taking a few classes on python and the whole time, I was wondering about modules. I can install them and run them with Eclipse but if I compile that program, so if it has an 'exe' extension, how would the module react on a computer that doesn't have it installed.
Example:
If I made some random little thing with something like pygame. I installed the pygame module on my computer, made an application with the pygame module and compiled it into an executable, how does the other computer that I run that file on. Or does it not work at all?
Python modules are already executable - you don't compile them. If you want to run them on another computer, you can install python and any other dependent module such as pygame on that computer, copy the scripts over and run them.
Python has many ways to wrap scripts up into an installer to do the work for you. Its common to use python distutils to write a setup.py file which handles the install. From there you can use setup.py to bundle your scripts into zip files, tarballs, executables, rpms, etc... for other machines. You can document what the user needs to make your stuff go or you can use something like pip or distribute to write dependency files to automatically install pygame (and etc...).
There are many ways to handle this and its not particularly easy the first time round. For starters, read up on distutils in the standard python docs and then google for the pip installer.
I wrote a program which uses a number of built in modules. The program is meant to be used by different persons on their systems. They dont have enough knowledge in python to install it when their system doesnt have the module needed to run the program. Is there any way of handling that.
Also I want to package the program as an executable in linux. It contains 3 py files and one text file only.
I think what you need is to create a debian package that handles the dependencies and the installation process.
I'm an Ubuntu user but this Complete Ubuntu Packaging Guide should help you get started. Good luck!
You can create an executable that contains your python modules and the python interpreter. You can use PyInstaller for creating such an executable.
I think the easiest way to achieve this on a debian distribution is to package your python application in a debian package. You can use this module to make life easier.