o_18ufhmfmq19t513t3lgmn5l1qa8a.pdf

582 ■INDEX
enumerate function 559
numbered iteration 97
environ mapping
os module 217
environment variables
setting 209
equality operator 89, 547
compared to identity 552
error class
pygame module 529
Error exception class 287
error messages. See tracebacks
escape function
re module 239, 241
escaping quotes 23–24
eval function 559
eval statements 105–106
event handling
wxPython GUI toolkit 278
except clause
adding to try/except statement 164
catching all exceptions 165–166
catching the object 165
catching two exceptions with one block 165
using more than one 164
Exception class 161
catching all exceptions 167
creating custom exception classes 162
examples of using with raise statement
160–161
exception handling
SimpleXMLRPCServer class 337
exceptions 159
built-in exceptions 161
catching exceptions 162
all exceptions 165–167
catching two exceptions with one
block 164
raise statement 163
catching the object 165
custom exception classes 162
finally clause 168
functions and 168–169
introduction 159–160
objects 159–160
raise statement 160–161
using else clauses 166
using more than one except clause 164
Zen of 169–170
exec statements 104–105, 569
execfile function 559
execute method
cursor object 289, 486
executemany method
cursor object 289
executing programs 19–20
exit function
sys module 215
exponentiation operator (**) 12
compared to pow function 16
expression statements 566
expressions 10–12
compared to statements 14
Python reference 557–566
extend method
lists 44
deque type 226
extending Python
introduction 357–358
Jython and IronPython 358–360
writing C extensions 360
hacking it on your own 365–370
SWIG 361–365
tools 360
extendleft method
deque type 226
Extreme Programming 341