Can we use python code in matlab?

Yes, that happens to me too.

If I try to run this, I get a similar message:

[status,result] = system('python test.py');

Almost certainly, if you fired up a command prompt and ran "python rat.py", you'd get the same response.... because your path doesn't have your python app in it.

SOLUTION:

1) Find out where it's installed.

For example, on my system, python.exe is installed here:

c:\apps\anaconda3\python.exe

2) So just modify your system call and add the full path, like this:

[status,result] = system('c:\apps\anaconda3\python test.py');

This worked for me

In general terms, you can almost always solve this by opening a system command prompt and find out exactly what you have to enter at the command prompt to get everything running. That's effectively what happens when you make a system call.

If you require multiple OS commands to run at the command prompt (changing dirs, etc), then put them all into 1 batch file (.bat) and execute the batch file.

You can call functionality from Python® libraries or execute Python statements directly from MATLAB®.

Access Python Modules

To access Python libraries, add the py. prefix to the Python name. For example:

py.list({'This','is a','list'})      % Call built-in function list
py.textwrap.wrap('This is a string') % Call wrap function in module textwrap

For more information, see Access Python Modules from MATLAB - Getting Started.

Run Python Code

To execute Python statements in the Python interpreter from the MATLAB command prompt, use the pyrun function. With this function, you can run code that passes MATLAB types as input and returns some or all of the variables back to MATLAB. For example, suppose that you run this statement in a Python interpreter.

>>> l = ['A', 'new', 'list']

To run the statement from MATLAB, use pyrun. To return the result to a MATLAB variable myList, add "l" as an outputs argument:

myList = pyrun("l = ['A', 'new', 'list']", "l");

Run Python Scripts

To call a Python script from the MATLAB command prompt, use the pyrunfile function. You pass MATLAB data and return variables the same way as with pyrun. For example, create a mklist.py file with these statements:

# Python script file mklist.py: 
s = 'list'
L = ['A', 'new', s]

Run the script from MATLAB:

myListFile = pyrunfile("mklist.py", "L")

myListFile = 
  Python list with no properties.

    ['A', 'new', 'list']

Access to Python Variables

When you use the py. prefix, MATLAB imports the entire module and can access all functions and classes of the Python code. However, when you execute Python code using the pyrun or pyrunfile functions, if you want to access Python data you must explicitly return Python objects to MATLAB using the outvars argument.

Limitations to pyrun and pyrunfile Functions

Python classes defined using pyrun or pyrunfile cannot be modified if you return an instance of the class to MATLAB. If you need to change class definitions, restart the interpreter session:

terminate(pyenv)
pyenv("ExecutionMode","OutOfProcess")

Alternatively, restart MATLAB for "InProcess".

The pyrun and pyrunfile functions do not support classes with local variables that are initialized by other local variables through methods. For such usage, create a module and access it using the py. prefix.

See Also

pyrun | pyrunfile

  • Access Python Modules from MATLAB - Getting Started

Directly call Python® functionality from MATLAB®

You can access Python libraries directly from MATLAB by adding the py. prefix to the Python name. See Access Python Modules from MATLAB - Getting Started. For example:

py.list({'This','is a','list'})      % Call built-in function list
py.textwrap.wrap('This is a string') % Call wrap function in module textwrap

You can execute Python statements in the Python interpreter directly from MATLAB using the pyrun or pyrunfile functions. For example:

pyrun("l = ['A','new','list']")  % Call list in Python interpreter

For more information, see Directly Call Python Functionality from MATLAB.

If instead you want to call MATLAB functions from Python applications, see Call MATLAB from Python for more information.

Functions

expand all

Environment

pyenv Change default environment of Python interpreter
PythonEnvironment Python environment information

Run Python Code

pyrun Run Python statements from MATLAB
pyrunfile Run Python script file from MATLAB

Keyword Arguments

pyargs Create keyword arguments for Python function

Exception Handling

matlab.exception.PyException Capture error information for Python exception

Topics

Use Python Libraries in MATLAB

  • Access Python Modules from MATLAB - Getting Started
    How to create and use a Python object in MATLAB.
  • Configure Your System to Use Python
    How to verify you have installed a supported version of Python.
  • Call User-Defined Python Module
    Create a Python module used by examples in this documentation.
  • Understand Python Function Arguments
    Python method syntax which might be unfamiliar to MATLAB users.
  • Advanced Topics
    Code pattern differences you should be aware of.
  • Out-of-Process Execution of Python Functionality
    Execute Python scripts in processes that are separate from the MATLAB process.
  • Reload Out-of-Process Python Interpreter
    Reload out-of-process Python interpreter without restarting MATLAB.

Run Python Code from MATLAB

  • Directly Call Python Functionality from MATLAB
    Ways to call Python from MATLAB.

Passing Data

  • MATLAB to Python Data Type Mapping
    How MATLAB converts MATLAB data into compatible Python data types.
  • Access Elements in Python Container Types
    A Python container is typically a sequence type (list or tuple) or a mapping type (dict).
  • Pass Python Function to Python map Function
    This example shows how to display the length of each word in a list.

Troubleshooting

Determine if Error is Python or MATLAB Error

Tips to determine if an error originates in Python or MATLAB code.

  • Unable to resolve the name py.myfunc
  • Debug Python Code Using MATLAB Interface

Limitations to Python Support

Python features not supported in MATLAB.

Handle Python Exceptions

MATLAB catches exceptions thrown by Python and converts them into a matlab.exception.PyException object.

Troubleshooting Matrix and Numeric Argument Errors

Error might be caused by input array with more than one non-singleton dimension.

Error Converting Elements of list or tuple

How to use string and numeric converters for list and tuple types.

Call Python Function in MATLAB to Wrap Paragraph Text

Use Python language functions and modules within MATLAB. The example calls a text-formatting module from the Python standard library.

Open Live Script

Use Python Numeric Variables in MATLAB

Use Python numeric variables with MATLAB.

Open Live Script

Can we use python code in matlab?

Use Python str Variables in MATLAB

Use Python str variables with MATLAB.

Open Live Script

Use Python list Variables in MATLAB

Use Python list variables with MATLAB.

Open Live Script

Use Python tuple Variables in MATLAB

Use Python tuple variables with MATLAB.

Open Live Script

Use Python dict Variables in MATLAB

Use Python dict variables with MATLAB.

Open Live Script

Can I write Python code in MATLAB?

Python features not supported in MATLAB. MATLAB catches exceptions thrown by Python and converts them into a matlab.

How do I import Python code into MATLAB?

When you use the py. prefix, MATLAB imports the entire module and can access all functions and classes of the Python code. However, when you execute Python code using the pyrun or pyrunfile functions, if you want to access Python data you must explicitly return Python objects to MATLAB using the outvars argument.

Can we connect MATLAB and Python?

You can connect the MATLAB® Engine for Python® to a shared MATLAB session that is already running on your local machine. You also can connect to multiple shared MATLAB sessions from a single Python session. You can share a MATLAB session at any time during the session, or at start with a startup option.

How do I compile Python code in MATLAB?

MathWorks Matrix Menu.
Generate a Python Package and Build a Python Application..
Prerequisites..
Create Function in MATLAB..
Create Python Application Using Library Compiler App. Specify Package Settings. ... .
Create Python Package Using compiler.build.pythonPackage..
Install and Run MATLAB Generated Python Application..
See Also..