printing – overload print python

printing – overload print python

For those reviewing the previously dated answers, as of version release Python 2.6 there is a new answer to the original posters question.

In Python 2.6 and up, you can disable the print statement in favor of the print function, and then override the print function with your own print function:

from __future__ import print_function
# This must be the first statement before other statements.
# You may only put a quoted or triple quoted string, 
# Python comments, other future statements, or blank lines before the __future__ line.

try:
    import __builtin__
except ImportError:
    # Python 3
    import builtins as __builtin__

def print(*args, **kwargs):
    My custom print() function.
    # Adding new arguments to the print function signature 
    # is probably a bad idea.
    # Instead consider testing if custom argument keywords
    # are present in kwargs
    __builtin__.print(My overridden print() function!)
    return __builtin__.print(*args, **kwargs)

Of course youll need to consider that this print function is only module wide at this point. You could choose to override __builtin__.print, but youll need to save the original __builtin__.print; likely mucking with the __builtin__ namespace.

Overloading print is a design feature of python 3.0 to address your lack of ability to do so in python 2.x.

However, you can override sys.stdout. (example.) Just assign it to another file-like object that does what you want.

Alternatively, you could just pipe your script through the the unix tee command. python yourscript.py | tee output.txt will print to both stdout and to output.txt, but this will capture all output.

printing – overload print python

class MovieDesc:
    name = Name
    genders = Genders
    country = Country

 def __str__(self):
#Do whatever you want here
        return Name: {0}tGenders: {1} Country: {2} .format(self.name,self.genders,self.country)

)