[Python编程(第4版)].(Programming.Python.4th.Edition).Mark.Lutz.文字版

downloading files, 857
functionality, 786, 997
HTML parsing and, 1435
PyMailCGI program and, 1237, 1248
screen scraping support, 779
testing browsers with, 1155–1157
urlopen method, 1156
URLs
CGI script escape conventions, 1201–1209
HTML conflicts and, 1206
minimal, 1139, 1194
passing parameters, 1153–1155, 1170–
1172, 1254–1257
PyMailGUI program improvements, 1117
query parameters, 1176
reading mail with, 1258
syntax, 1137–1139
user interaction
checking for missing/invalid inputs, 1190–
1192
form tags, 1150–1152
passing parameters in URLs, 1153–1155,
1170–1172, 1254–1257
response script, 1152
submission page, 1149
uu module, 786

V
Value object (multiprocessing), 248
van Rossum, Guido, 25, 36, 357, 776
variables
associated, 454–456, 457
check buttons and, 460–461
global, 206, 250–252, 385
radio buttons and, 463–465
scales and, 469–471
usage recommendations, 466

W
weave package, 1513
web browsers (see browsers)
Web frameworks, 777
web pages
building with CGI scripts, 1135–1140
generator script, 294–297
sharing objects between, 1193–1196
template files, 293
web servers

root page examples, 1133

running CGI scripts, 55–57, 1130

running local, 1131–1133

Web services, 779

web-based interfaces

CGI scripts, 52–55

formatting reply text, 59

programming suggestions, 68

query strings and, 57–59

running web servers, 55–57

shelve module support, 60–69

toolkit suggestions, 52

urllib module support, 57–59

webbrowser module, 343–347–348

websites

accessing, 994–997

design considerations, 1169

generating redirection web pages, 292–297

widget builder functions, 598

widgets, 448

(see also specific widget classes)

adding multiple, 395–400

adding via CGI scripts, 1163–1166

advanced, 595

after tool, 582, 589, 591

after_cancel tool, 583

after_idle tool, 583

anchor option, 399–400

attaching to frames, 397, 471–475

bd option, 418

binding events, 443–448

clipping, 396

config method, 375, 416

configuring appearance, 416–419

configuring options, 375

constructing, 370

cursor option, 418

customizing labels, 417

customizing with classes, 400–403

dialogs and, 426–443

expanding, 380

focus tool, 584

grab tool, 584

hiding and redrawing, 587

laying out input forms, 451–454

packing layout, 397–400

packing without saving, 377–378

pack_forget method, 587

padx option, 418

Index| 1583