Pyplines

Unix pipeline syntax in Python!

To use simply

from pypline import pypline

Then decorate generators to use with the pypline!

Examples

#simple filtering of numbers by divisibility
from pypline import pypline
from pypline import display

@pypline
def even(iter):
    '''
    Note - param 1 is needs to take an iterable for this to work! This is the only 
    real requirement
    '''
    for value in iter:
        if value % 2 == 0:
            yield value

@pypline
def divisible(iter, divis_value):
    for value in iter:
        if value % divis_value == 0:
            yield value

#We need a data generator to start the pipeline (any will do!)
#Then we pyp it along to other data consumers
#Finally, display ( a built in pypline consumer) will display images to the terminal
#Finally, pypline members can either take parameters or be parameterless
range(10) | even | divisible(3) | display

#convert bool functions into pypline members
from pypline import pypline_conversion
from pypline import display

@pypline_conversion
def even(value):
    return value % 2 == 0

range(10) | even | display

Convenience Functions

• sort - sort pypline
  takes an optional key function (exactly like sorted)
• display - print to terminal
  takes an optional file argument for redirecting
• reverse - reverse pypline