Recently I have become a fan of storing various settings used for my testing scripts in the OSX defaults system as it allows me to keep various scripts in git and push them to github without worrying about leaving passwords/settings/etc hardcoded into the script.
When writing a shell script using simple bash commands, it is easy enough to use backticks to call the defaults binary to read the preferences and if there is an error reading the preference, the script stops execution and you can see the error and fix it. When I try to do a similar thing in Python or Ruby it tends to be a little more annoying since you have to do additional work to check the return code of defaults to see if there is an error.
I have been attempting to search via google off and on for a library to use the OSX defaults system which ends up being somewhat difficult when "defaults" is part of your query string.
I thought of trying to read the plist files directly but it seems like the plist libraries I have found (such as the built in python one) are only able to read the XML ones (not the binary ones) which is a problem if I ever set anything with the defaults program since it will convert it back to a binary plist.
Recently while trying another search for a Python library I changed the search terms to something using something like NSUserDefaults (I have now forgotten the exact term) I found a Python library called userdefaults but it was developed for an older version of OSX (10.2) with an older version of Python (2.3) and I have not had much luck in getting it to compile on OSX 10.6 and Python 2.6
Ideally I would like to find a library that would make it easy to read from (and as a bonus write to) the OSX defaults system in a way similar to the following python psudo code.
from some.library.defaults import defaults
settings = defaults('com.example.app')
print settings['setting_key']
Since I am also starting to use Ruby more, I would also like to find a Ruby library with similar functionality.
It may be that I have to eventually just 'give up' and write my own simple library around the defaults binary but I thought it wouldn't hurt to try to query others to see if there was an existing solution.
You´ll want to use PyObjC: have a look at this article at mactech.com (in specific: scroll down to "Accessing plists Via Python"). And this article from oreilly on PyObjC.
Run this, for example:
from Foundation import *
standardUserDefaults = NSUserDefaults.standardUserDefaults()
persistentDomains = standardUserDefaults.persistentDomainNames()
persistentDomains.objectAtIndex_(14)
aDomain = standardUserDefaults.persistentDomainForName_(persistentDomains[14])
aDomain.keys()
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I'm trying to run a face detection model in Unity. It gets input from the webcam, then spits out a face. But trying to make this work with C# has been an absolute nightmare. And despite all my suffering, I still haven't been able to make it work!
If I could use python, I'd be able to get it done easily. So, obviously, I want to find a way to get a python script working in Unity. But IronPython is the only thing I've been able to find, and it's outdated.
I need either knowledge of how to make IronPython work in spite of being outdated, or some other method. Please.
Unfortunately, Unity at this time does not support Python. Although, there is an asset that you can use a bit of Python with. I am not sure what you can do with this asset but I know it could help a minimal amount:https://assetstore.unity.com/packages/tools/integration/python-interpreter-645
Quick Note: Most programming languages work about the same way. If you figure out the documentation and grammar/punctuation for C#/UnityC#, you should be off just fine.
I try to use python once on Unity and I found a few ways:
There is a package call "IronPython" where you can add a python file to your unity project and then call a function from C# to your python code, to do that you should follow this:
We already know that we can use python to use .net internal calls.
Now we may use the same to start a console that can accept a scripting language in Unity engine.
To do this we have to include certain dll files.
These dll files must be present in Assets>plugins
IronPython.dll
IronPython.Modules.dll
Microsoft.Scripting.Core.dll
Microsoft.Scripting.dll
Microsoft.Scripting.Debugging.dll
Microsoft.Scripting.ExtensionAttribute.dll
Microsoft.Dynamic.dll
Once the Plugins are in place.
Initiate the Cs code
PythonEngine engine = new PythonEngine();
engine.LoadAssembly(Assembly.GetAssembly(typeof(GameObject)));
engine.ExecuteFile("Test.py");
Where test.py is the python code.
Initiate python side:
import UnityEngine from UnityEngine
import *
Debug.Log("Hello world from IronPython!")
References:
https://github.com/cesardeazevedo/Unity3D-Python-Editor
http://techartsurvival.blogspot.in/2013/12/embedding-ironpython-in-unity-tech-art.html
IronPython in Unity3D
the issue with this way is that most of the python module are not supported.
2.the second way is to create a file like json that contain the data you want to send to the json and then create an output json that send the output from the python script, this way is very limited with what you can send because the data must be contain in your json.
the last way that work for me is to install the Nuget package and copy the script from python to c# line by line with the relevent module installed in Unity and it's work for me, but copy a long code can take time.
this is a reference to the package:
https://github.com/GlitchEnzo/NuGetForUnity
and then to install the relevent package you should press on NuGet → Manage NuGet Packages and the choose the relevent package(for me it was Numpy and it work grate).
hope it will help you
I don't know how recent it is but there is a Unity package for python available on unity 2019.3 and further versions.
Warning the first versions of this package can't use Python3.
You can see more for yourself by the following link.
https://docs.unity3d.com/Packages/com.unity.scripting.python#2.0/manual/index.html
I hope this may help you.
We are thrilled to announce that Python for Unity 4.0.0-exp.5 is now available!
4.0.0-exp.5 is a major upgrade from our last public release, and incorporates a large number of changes. In summary:
Based on Python 3.7; scripts based on Python 2.7 will need to be ported.
Users no longer need to install Python on their system.
In-process Python is no longer reinitialized when the Unity domain reloads.
Removed the out-of-process API. The PySide example now runs in-process and is much simpler.
Limited support for a virtual environment workflow via the ProjectSettings/requirements.txt file.
Many bug fixes.
Documentation for the Python for Unity package is available here, and the full changelog can be found here.
This is an experimental release, and thus is not visible in Package Manager. To install this package, open Package Manager, click the + at the top left and select Add package by name.... Enter com.unity.scripting.python as the name and and 4.0.0-exp.5 as the version and click Add. Alternatively, you may edit Packages/manifest.json and add "com.unity.scripting.python": "4.0.0-exp.5", to the list of dependencies, or edit the existing entry for Python for Unity to update the version.
Soursce: https://forum.unity.com/threads/python-for-unity-release-announcements.1084688/
Documentation: https://docs.unity3d.com/Packages/com.unity.scripting.python#4.0/manual/index.html
Unity not supported python, But you Can write Python Code and run it by Socket programing, Create Server with python and send data,in C# Connect to server and use data sended with python.
Is there a way to get eclipse to read .pyc files?
I'm trying to avoid downloading an external program and I would rather not trust an on-line service.
There is no open-source/free decompiler for Python - just a "disassembler" (see the dis-module in the stdlib). Getting back from the Python Stack-VM-assembly (which is stored in .pyc-files) to working Python code is mostly easy, as the general structure of the code is preserved, even when using "-O".
For special case solutions (i.e., marshalling .pyc-s in the old [pre 2.3]-format), see the answer #FabioZadrozny linked, but especially when you're using Python >=2.5 to produce the .pyc-s, this will most probably not work, though, as a lot of opcodes have changed/been added.
My Delphi program uses Python4Delphi, and the Python script uses some standard libs. When deploying my program I don't want an entire Python installation, and it must work with python27.dll. What are the minimal set of necessary files? The document in Python4Delphi is dated and it's not clear to me...
Thanks for your help.
When I did this, I made the list myself, of what I needed for my embedded python application to work.
I remember this worked with python15.dll:
PythonXX.dll should work, without any other external files other than the Visual C++ Runtime DLLs, which require a side-by-side manifest (see the p4d wiki page) to work.
If you want to IMPORT something, then you need to ship it and anything it depends on. That means, either you pick part of the python standard libraries you want, or you pick all of it. There is no way you need all of Python's standard libraries. But I wouldn't want to live without OS and a a few other key ones. BUt the decision is yours.
I've previously used http://code.google.com/p/wkhtmltopdf/ with http://pypi.python.org/pypi/wkhtmltopdf/0.2 to create screenshots of websites from the command line. However, I was wondering whether a pure python package exists, that can do the same. Currently I always need to download the correct binary of http://code.google.com/p/wkhtmltopdf/ if I switch computers. A pure python package would relieve me from this. Any ideas?
That would require a browser engine written in pure python. And this means you need a CSS processor und, more important, a complete Javascript engine written in Python. While this is undoubtedly possible, I'm pretty sure nobody has done it.
I used cpython api to load py from C/C++.
But, if i want not setup cpython in client, can I take package dll of cpython in my program?
How to do that?
Installer-builders like PyInstaller (cross-platform) and py2exe (Windows only) basically do that job for you in a general way, except that the executable at the heart of the produced package is their own instead of yours.
But basically, you can imitate their behavior in terms of setting up a .zip file with all the Python library modules you need (or just zip up everything in the standard python library if you want to allow python code running form your app to import anything from there), and follow the simple advice in the Embedding Python in Another Application section of the Python docs.
Note that embedding Python equals extending Python plus a little bit of code to initialize and finalize the interpreter itself and a little bit of packaging as I just mentioned; if you've never writted Python extensions I would suggest practicing that first since it's the most substantial part of the task (not all that hard with helpers such as boost python, but more work if you choose to do it as the "bare C" level instead).
You don't need to setup Python to embed it in applications. The core of the Python interpreter is available as a shared library which you can dynamically load in your application and distribute with it.
Read on embedding Python in the official docs. Also, this article seems nice and comprehensive for Linux. For Windows, read the notes here.
Here's another SO question that discusses this issue.
The Python license is probably hard to understand for a non-lawyer, non-native English speaker. So yes, you can redistribute the unmodified DLL as it contains the copyright notice within it.
It would be polite to give credit like "This program contains the Python Language Interpreter version X.XX http://python.org for more information" or similar somewhere in the program or documentation.