By Brad Dayley
Python Phrasebook
Brad Dayley
Essential Code and Commands
Python Phrasebook promises the code words you must quick and successfully whole your programming initiatives in Python.
Concise and Accessible
Easy to hold and simple to use–lets you ditch all these cumbersome books for one moveable guide
Flexible and Functional
Packed with greater than a hundred customizable code snippets–so you could with ease code sensible Python in precisely approximately any situation
Brad Dayley is a software program engineer at Novell, Inc. He has been a method administrator and software program developer at the Unix, home windows, Linux, and NetWare systems for the previous 14 years. Brad co-developed a sophisticated debugging direction used to coach engineers and clients and is the co-author of a number of Novell Press books.
Programming / Python
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Example text
These methods work in a similar manner as the find and index methods; however, they look for the rightmost occurrence of the substring. The replace method accepts a search string as the first argument and replacement string as the second argument. Each 43 44 CHAPTER 2: Manipulating Strings occurrence of the search string will be replaced with the new string. Optionally, you can specify a maximum number of times to perform the replace operation as the third argument. py What is the air speed velocity of an unlaiden swallow?
System refers to which OS is currently running, node refers to the host name of the machine, release refers to the major release of the OS, version refers to a string representing OS release information, and machine and processor refer to the hardware platform information. The following examples illustrate some of the most common uses of the time module. This value is typically collected at various points in the program and is used in delta operations to determine the amount of time since an event occurred.
In the sample code, the variable b from fun can be referenced for value in the sub function; however, modifying its value in sub would not change the value in fun. t'>, 'time':