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Python Formatting via the str.format method
String Handling example from a Well House Consultants training course
More on String Handling [link]
Source code: pyform Module: Y108
# Python Formatting via the str.format method
""" The % operator on strings allows for formatting in the traditional "printf" manner of other languages, but is now deprecated and a new formatter is provided. This example introduces that new formatter. """ # Once again, a placeholder string is used to fill in values from a collection of # values into a template, but now the placeholder is written in curly braces rather # than after a % character. days = 7 + 7 totalcost = 99.5 dayname = "Mon" + "day" dailycost = totalcost / days print ("Taking {0} days from next {1} at {2} per day - total {3} !". \ format(days,dayname,dailycost,totalcost)) # formatting details can be provided for each of the elements: print ("Taking {0} days from next {1:<8} at {2:.2f} per day - total {3:.2f} !". \ format(days,dayname,dailycost,totalcost)) # elements can be named ... print ("Taking {days} days from next {dayname:>8} at {dailycost:.2f} per day - total {totalcost:.2f} !". \ format(dailycost = 3.4, totalcost = 27, dayname = "Friday", days = 9)) # variables cane be used within format strings for k in range(10,20): print ("***{0:-^{1}}***".format("Hello",k)) """ Sample output WomanWithCat:y108 grahamellis$ python2 pyform Taking 14 days from next Monday at 7.10714285714 per day - total 99.5 ! Taking 14 days from next Monday at 7.11 per day - total 99.50 ! Taking 9 days from next Friday at 3.40 per day - total 27.00 ! ***--Hello---*** ***---Hello---*** ***---Hello----*** ***----Hello----*** ***----Hello-----*** ***-----Hello-----*** ***-----Hello------*** ***------Hello------*** ***------Hello-------*** ***-------Hello-------*** WomanWithCat:y108 grahamellis$ python3 pyform Taking 14 days from next Monday at 7.107142857142857 per day - total 99.5 ! Taking 14 days from next Monday at 7.11 per day - total 99.50 ! Taking 9 days from next Friday at 3.40 per day - total 27.00 ! ***--Hello---*** ***---Hello---*** ***---Hello----*** ***----Hello----*** ***----Hello-----*** ***-----Hello-----*** ***-----Hello------*** ***------Hello------*** ***------Hello-------*** ***-------Hello-------*** WomanWithCat:y108 grahamellis$ """ Learn about this subject
This module and example are covered on the following public courses:
* Learning to program in Python * Python Programming * Intermediate Python Also available on on site courses for larger groups Books covering this topic
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This example comes from our "String Handling" training module. You'll find a description of the topic and some
other closely related examples on the "String Handling" module index page.
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