Matlab call python function with arguments

Positional Arguments

A positional argument is passed by position. These arguments appear at the beginning of a function signature.

Some functions accept an arbitrary sequence of positional arguments, including no arguments. In Python, these arguments are defined by prepending the name with the * character.

Keyword Arguments

A keyword argument is preceded by an identifier. Keyword arguments, also called named arguments, can be specified in any order. Keyword arguments are like name-value pairs in MATLAB. Use the MATLAB pyargs function to create keyword arguments for Python functions.

This example uses the default value for the file keyword. Create some text variables.

x1 = py.str('c:');
x2 = py.os.curdir;
x3 = py.os.getenv('foo');
py.print(x1,x2,x3)

To display the values on separate lines, use newline, \n, as a separator.

py.print(x1,x2,x3,pyargs('sep',sprintf('\n')))

To change sep to an empty string and change the end value to display THE END, type:

py.print(x1,x2,x3,pyargs('end', sprintf(' THE END\n'),'sep',py.str))

Optional Arguments

An optional argument is a non-required argument.

Optional arguments can have default values. A default value is indicated by an equal sign = with the default value.