• Python Q&A

Get feedback and ongoing discussion at the TLLTS Forum. Other Python forums include Python Forum

• PyGTK interactive console pygtkconsole.py by JZA

• PyGTK interactive console pygtkconsole.py

• PyGTK interactive console pygtkconsole.py

• Display the day-of-week name for a date DayOfWeek by Verbal

• Shuffle a string of characters PythonShuffle by Verbal

• Display the day-of-week name for a date DayOfWeek by verbal
• Random numbers PythonRandomNumbers by Verbal

Random numbers PythonRandomNumbers by Verbal

Take, for instance, an "if" statement:

Display the day-of-week name for a date DayOfWeek by verbal

Display the weekday name for a date DayOfWeek by verbal

  DayOfWeek

Python Code Examples

  DayOfWeek

Indentation Sensitive

One thing that sets Python apart from other languages is that it is indentation sensitive! You might see this refered to as whitespace sensitive, also.

Take, for instance, an "if" loop:

 ...     print "Greater than"

Indenting the fourth line produces the desired result.

 >>> if 3 > 4 :
 ...     print "Greater than"
 ... else :
 ...     print "Less than"

 Less than

So, the indentation, or whitespace, is not merely for looks, but a part of the language and has meaning.

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<<<<<<< =======

>>>>>>>

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 >>> if 3 > 4 :
 ...   print "Greater than"
 ... else :
 ... print "Less than"
   File "<stdin>", line 4
     print "Less than"
         ^
 IndentationError: expected an indented block

===================== >>> if 3 > 4 : ... print "Greater than" ... else : ... print "Less than"

  File "<stdin>", line 4
    print "Less than"
        ^

IndentationError: expected an indented block =====================

One thing that sets Python apart from other languages is that it is INDENTATION SENSITIVE!

Python Forum

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Resources

Python Tutor Mailing List

Visit Python Tutor Mailing List to sign up for questions and answers. You can choose the daily digest or receive them as they come, and of course the list runs on mailman, a Python-based mailing list.

• Python Strings
• Python Lists
• Python Tuples
• Python Sets
• Python Dictionaries (split)

• Strings
• Lists
• Tuples
• Sets
• Dictionaries (split)

• Lists

• Sets

Python Lectures Recordings

• Strings
• Lists
• Tuples
• Sets
• Dictionaries (split)

Python Lectures

A lecture by Dr. Sergio Rey of San Diego St. University on Python Data Sturctures, including strings, lists, tuples, dictionaries and sets.

• http://www.oooxtremo.org/DataStructureStrings.ogg Strings
• http://www.oooxtremo.org/DataStructure_Lists.ogg Lists
• http://www.oooxtremo.org/DataStructure_tuples.ogg Tuples
• http://www.oooxtremo.org/DataStructure_Sets.org Sets
• http://www.oooxtremo.org/DataStructure_dictionaries.ogg Dictionaries (split)

Or, alternatively, we can pass the prompt to raw_input() directly:

Or, alternatively, we can pass pass the prompt to raw_input() directly:

#!/usr/bin/python
name = raw_input('Please enter your name: ')
print 'How are you, ' + name + '?' 

[@#!/usr/bin/python Name.py - Ask your name and replies with your name

print 'How are you, ' + name + '?' @] We run the program and we can get the following:

 $ python Name.py
Please enter your name
Dann
How are you Dann? 

Standard input and output

To have Python standard input output we need to use the print and raw_input(), print will become a function on Python 3000 but so far it's still a command. Here is the code sample:

#!/usr/bin/python

print 'Please enter your name.'
name = raw_input()
print 'How are you, ' + name + '?'

• Also links to several other online books and resources, available in a printable format. Likely to be the text used.

• Seems like a nice book, too. From the site:
  This book serves as a guide or tutorial to the Python programming language. It is mainly targeted at newbies (those who are new to computers). It is also useful for experienced programmers who are new to Python. Might be more complete than Python Programming

• A book published by Apress, available in several formats for download, but written with experienced programmers in mind.

We're leaning towards Python Programming, so that will likely be the text to use, starting with the Interactive shell.

IRC Meeting Day

Still deciding on what day to have IRC meetings.

I think it a good plan to glance at these and other books, and have a (hopefully brief) discussion about which suits the group best. It appears that the first three texts are good for the first-time programmer. Any opinions on other qualities we'd like the text to have?

• Seems like a nice book, too. From the site:
  This book serves as a guide or tutorial to the Python programming language. It is mainly targeted at newbies (those who are new to computers). It is also useful for experienced programmers who are new to Python.

I think it a good plan to glance at these and other books, and have a (hopefully brief) discussion about which suits the group best. It appears that the first three texts are good for the first-time programmer. Any opinions on what qualities we'd like the text to have?

• An advanced text to use after learning the basics, listed as a 0.1 version, and this book recommends Byte of Python as an intro text. Looks like it could be out of date, though.

• Also links to several other online books and resources, available in a printable format.

• Seems like a nice book, too. From the site:
  This book serves as a guide or tutorial to the Python programming language. It is mainly targeted at newbies (those who are new to computers). It is also useful for experienced programmers who are new to Python.

• Dive into Python
  • A book published by Apress, available in several formats for download.
• Thinking in Python
  • An advanced text to use after learning the basics, listed as a 0.1 version, and this book recommends Byte of Python as an intro text.

Hello Python

 hello_world()

Books

So, in order to work together, it seems we'll need a text to work from, but which book to use? The current books that have been recommended or mentioned are:

• Python Programming
  • Also links to several other online books and resources
• Byte of Python
  • Seems like a nice book, too. Maybe a bit short, from the site:
    This book serves as a guide or tutorial to the Python programming language. It is mainly targeted at newbies (those who are new to computers). It is also useful for experienced programmers who are new to Python.

I think it a good plan to glance at these and other books, and have a (hopefully brief) discussion about which suits the group best. Any general ideas for exactly what qualities we'd like the text to have?

 def hello_world():
     print 'Hello World!'

Just something to give us a quick start.

 def hello_world():
     print 'Hello World!'

 hello_world()

Just something to give us a quick start.