Tài liệu Dive Into Python-Chapter 6 Exceptions and File Handling doc

... for 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 exceptions and ... 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'v...

Ngày tải lên: 26/01/2014, 08:20

... 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....

Ngày tải lên: 26/01/2014, 08:20

... Setting an MP3FileInfo's name >>> import fileinfo >>> mp 3file = fileinfo.MP3FileInfo() >>> mp 3file {'name':None} >>> mp 3file[ "name"] ... 97, 1 26, stripnulls), "genre" : (127, 128, ord)} >>> import fileinfo >>> fileinfo.MP3FileInfo <class fileinfo.MP3FileInfo at 01257FDC> >>...

Ngày tải lên: 14/12/2013, 14:15

... 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 6. 9, “Simple Counters”, ... standard output, and standard error. This section is for the rest of you. Standard output and standard error (commonly abbreviated stdout and stderr) are pipes...

Ngày tải lên: 26/01/2014, 08:20

... discusses another way 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 return ... Introducing and >>> 'a' and 'b' 'b' >>> '' and 'b' '' >>> 'a' and &apos...

Ngày tải lên: 14/12/2013, 14:15

... representation of 266 6. This matches the start of the string, then four out of four M characters, then D?C{0,3} with a D and three out of three C characters; then L?X{0,3} with an L and three out ...  Characters are additive. I is 1, II is 2, and III is 3. VI is 6 (literally, “5 and 1”), VII is 7, and VIII is 8.  The tens characters (I, X, C, and M) can be repeated u...

Ngày tải lên: 14/12/2013, 14:15

... ("http://diveintopython.org/kant.xml") - a filename of a local XML file ("~/diveintopython/common/py/kant.xml") - standard input ("-") - the actual XML document, ... >>> plist = xmldoc.getElementsByTagName("p") >>> plist [<DOM Element: p at 1 361 401 16& gt;, <DOM Element: p at 1 361 42172>, <DOM Element: p at...

Ngày tải lên: 14/12/2013, 14:15

... 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 ... essential handler methods: unknown_starttag, unknown_endtag, handle_charref, handle_entityref, handle_comment, handle_pi, handle_decl, and handle_data. Example 8.8. Int...

Ngày tải lên: 26/01/2014, 08:20

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Ngày tải lên: 10/12/2013, 02:15

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Ngày tải lên: 10/12/2013, 18:15