Foundations of Python Network Programming

quoting
delimiter scheme, 83
prefix message, 83
unknown lengths, 84
repr(), 76
XML format, 87
Network exceptions
catching, 91
blanket exception handlers, 91
FatalError exceptions, 91
granular approach, 91
delivering exceptions, 90
httplib, 89
OSError, 88
socket.gaierror, 89
urllib2, 89
nlst() and dir() methods, 326
ntransfercmd(), 321

„„„„„„„„„O

Object-relational mapper (ORM), 207
Office of Information Technology (OIT), 247
OPTIONS method, 155

„„„„„„„„„P, Q

Passive sockets, 41
Perfect Forward Security (PFS)
create_default_context() function, 104, 106
definition, 106
ECDHE, 105
OpenSSL, 105
ssl module, 106
Platform-as-a-service (PaaS) providers, 175
POP. See Post Office Protocol (POP)
POP3_SSL object, 106
POST method, 155
Post Office Protocol (POP), 243
connecting and authenticating process, 260
dele() method, 264
e-mail reader, 264–266
list() command, 263
poplib module, 259
retr() method, 264
server compatibility, 259
top() method, 264
PUT method, 155
Python 3.4, 171
Python 3.4 default contexts
cafile option, 101
client and server, 100–101
localhost certificate, 102
OpenSSL library, 99
socket wrapping, 104

ssl.create_default_context() function, 99–100

tcpdump, 102

wrap_socket() method, 101

„„„„„„„„„R

raise_for_status() method, 158

Realm, 164

Reliable transport, 17

Remote procedure call (RPC), 143

features, 332

JSON-RPC

eval() function, 339

JSON-RPC client, 340

localhost interface, 341

web server, 340

network errors, 346

Pyro and RPyC objects, 343

RPyC, 344

self-documenting data, 342

web frameworks and message, 346

XML-RPC

add() and subtract() math functions, 337

function calls, 336

listMethods(), 335

mechanism, 338

multicall function, 334

Python Standard Library, 333

quadratic(), 338

ServerProxy class, 337

web server, 333, 335

Representational State Transfer (REST)

advantages, 177

benefits, 178

concept, 176

definition, 176

HATEOAS, 178

POST, 177

resources manipulation, 177

REST API, 178

RPC, 177

self-descriptive messages, 177

Requests library, 151

RPC. See Remote procedure call (RPC)

„„„„„„„„„S

scrape_with_lxml() function, 217

scrape_with_soup() function, 217

Secure Sockets Layer (SSL), 254

Sender Policy Framework (SPF), 245

sendto() function, 22

Server architecture

accept_connections_forever(), 119

ASCII question mark character, 117

■ index

353