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CSV Reader / Writer Example 1
1.1 The Basics          . 1
1.2 Reading and writing dictionaries        . 5
1.3 Download the Code Project        . . . . 6
2 Decorator Tutorial 7
2.1 Understanding Functions        . . . . . 7
2.2 Jumping into decorators         8
2.3 The Practice          9
2.4 Download the Code Project        . . . . 14
3 Threading / Concurrency Example 15
3.1 Python _thread module         15
3.2 Python threading module        . . . . . 16
3.2.1 Extending Thread        . . . . . 16
3.2.2 Getting Current Thread Information       . 17
3.2.3 Daemon Threads        . . . . . 18
3.2.4 Joining Threads         20
3.2.5 Time Threads         . 22
3.2.6 Events: Communication Between Threads      . . . . 23
3.2.7 Locking Resources        . . . . 24
3.2.8 Limiting Concurrent Access to Resources      . . . . 29
3.2.9 Thread-Specific Data        . . . 29
4 Logging Example 31
4.1 The Theory          31
4.1.1 Log Levels         . . 31
4.1.2 Handlers         . . . 32
4.1.3 Format         . . . . 32
4.2 The Practice          33
4.3 Download the Code Project        . . . . 39

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Python Programming Cookbook iii
5 Django Tutorial 40
5.1 Creating the project         . . 40
5.2 Creating our application        . . . . . 40
5.3 Database Setup         . . . . 41
5.4 The Public Page         . . . . 45
5.5 Style Sheets          47
5.6 Download the Code Project        . . . . 49
6 Dictionary Example 50
6.1 Define          . . . 50
6.2 Read          . . . . 50
6.3 Write          . . . 52
6.4 Useful operations         . . . 52
6.4.1 In (keyword)         . 53
6.4.2 Len (built-in function)        . . 53
6.4.3 keys() and values()        . . . . 54
6.4.4 items()         . . . . 55
6.4.5 update()         . . . . 56
6.4.6 copy()         . . . . . 56
6.5 Download the Code Project        . . . . 57
7 Sockets Example 58
7.1 Creating a Socket         . . . 58
7.2 Using a Socket         . . . . 59
7.3 Disconnecting         . . . . . 60
7.4 A Little Example Here         60
7.5 Non-blocking Sockets         . 62
7.6 Download the Code Project        . . . . 63
8 Map Example 64
8.1 Map Implementation         . 64
8.2 Python’s Map         . . . . . 65
8.3 Map Object          68
8.4 Download the Code Project        . . . . 69
9 Subprocess Example 70
9.1 Convenience Functions         70
9.1.1 subprocess.call         70
9.1.2 subprocess.check_call        . . 71
9.1.3 subprocess.check_output        . 72
9.2 Popen          . . . 72
9.3 Download the Code Project        . . . . 74

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Python Programming Cookbook iv
10 Send Email Example 75
10.1 The Basics of smtplib         . 75
10.2 SSL and Authentication         76
10.3 Sending HTML         . . . . 77
10.4 Sending Attachments         . 78
10.5 Download the Code Project        . . . . 80