Tài liệu Dive Into Python-Chapter 10 Scripts and Streams docx
Tài liệu Dive Into Python-Chapter 10. Scripts and Streams docx
... range(3):
sys.stdout.write(&apos ;Dive in') 2
Dive inDive inDive in
>>> for i in range(3):
sys.stderr.write(&apos ;Dive in') 3
Dive inDive inDive in
1 As you saw in Example ... sock.close()
return xmldoc
10. 2. Standard input, output, and error
UNIX users are already familiar with the concept of standard input, standard
output, and standard error....
Tài liệu Dive Into Python-Chapter 5. Objects and Object-Orientation ppt
... the same keys and
values, and strings are equal when they are the same length and contain
the same sequence of characters. For class instances, you can define the
__cmp__ method and code the ... of elements. For class
instances, define the __len__ method and code the length calculation
yourself, and then call len(instance) and Python will call your
__len__ special method f...
Tài liệu Dive Into Python-Chapter 6. Exceptions and File Handling doc
... with for Loops
Chapter 6. Exceptions and File Handling
In this chapter, you will dive into exceptions, file objects, for loops, and the
os and sys modules. If you've used exceptions ... file handling.
6.1. Handling Exceptions
Like many other programming languages, Python has exception handling via
try except blocks.
Note
Python uses try except to handle exceptio...
Tài liệu Dive Into Python-Chapter 4. The Power Of Introspection ppt
... Introducing and
>>> 'a' and 'b'
'b'
>>> '' and 'b'
''
>>> 'a' and 'b' and 'c' ... to filter lists using the built-in
filter function.
4.6. The Peculiar Nature of and and or
In Python, and and or perform boolean logic as you would expect, but they
do not r...
Tài liệu Dive Into Python-Chapter 7. Regular Expressions doc
... (400, 100 less than 500). CI is
101 ; IC is not even a valid Roman numeral (because you can't
subtract 1 directly from 100 ; you would need to write it as XCIX, for
10 less than 100 , then ... start with the highest: the thousands place. For
numbers 100 0 and higher, the thousands are represented by a series of M
characters.
Example 7.3. Checking for Thousands
>>>...
Tài liệu Dive Into Python-Chapter 9. XML docx
... a remote XML file
("http://diveintopython.org/kant.xml")
- a filename of a local XML file
("~/diveintopython/common/py/kant.xml")
- standard input ("-")
- ... extends into the
128-255 range for characters like n-with-a-tilde-over-it (241), and u-with-two-dots-over-
it (252). And unicode uses the same characters as 7-bit ASCII for 0 through 127, an...
Tài liệu Dive Into Python-Chapter 8. HTML Processing doc
...
appendix/history.html
download/diveintopython-html-5.0.zip
download/diveintopython-pdf-5.0.zip
download/diveintopython-word-5.0.zip
download/diveintopython-text-5.0.zip
download/diveintopython-html-flat-5.0.zip ... subclasses SGMLParser and provides all 8 essential
handler methods: unknown_starttag, unknown_endtag, handle_charref,
handle_entityref, handle_comment, handle_pi, handle_...
Tài liệu Dive Into Python-Chapter 11. HTTP Web Services doc
... urllib.urlopen('http://diveintomark.org/xml/atom.xml').read()
connect: (diveintomark.org, 80) 2
send: '
GET /xml/atom.xml HTTP/1.0 3
Host: diveintomark.org 4
User-agent: Python-urllib/1.15 ... opener.open(request).read() 3
connect: (diveintomark.org, 80)
send: '
GET /xml/atom.xml HTTP/1.0
Host: diveintomark.org
User-agent: OpenAnything/1.0 +http://diveintopython....