Learning Python, 2nd Edition
by Mark Lutz, David Ascher


The following errata were *corrected* in the 09/06 reprint:


This page was updated February 20, 2007 


Here's a key to the markup:
	[page-number]: serious technical mistake
	{page-number}: minor technical mistake
	<page-number>: important language/formatting problem
	(page-number): language change or minor formatting problem
	?page-number?: reader question or request for clarification
	+n:  n'th paragraph from the top of the page
	-n:  n'th paragraph from the bottom of the page


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(109) +5

empty except for the two positions, (2,3,4) and (7,8,8).
->
empty except for the two positions, (2,3,4) and (7,8,9).

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(144) middle of sidebar

sys.sytdout
->
sys.stdout

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(172) 3rd line of the "The dir Function" section

atributes
->
attributes

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{261} +1
 
To really change a global name in another file, you must use import:
->
To really change a global name in another module, you must use import:

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(433) Table 26-1, Attributes row

-name-
->
__name__

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(434) IDE section 

some advance IDEs
->
some advanced IDEs

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(435)  -1

-name-
->
__name__

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(440) +1

yeteminently
->
yet emininently

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(444) The "safeint" example

def safeint(candidate):
  converted = float(candidate)
  rounded = round(converted)
  if converted == rounded:
    return int(converted)
  else:
    raise ValueError, "%s would lose precision when cast" % candidate

->

def safeint(candidate):
  converted = float(candidate)
  truncated = int(converted)
  if converted == truncated:
    return truncated
  else:
    raise ValueError, "%s would lose precision when cast" % candidate

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(457) -1

see Chapter 7
->
see Chapter 23

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(460)  Table 27-4, Behavior column

directory tree rotted
->
directory tree rooted

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[479]  2nd code section from bottom

self.__init__(self, *args, **kw)
->
Base.__init__(self, *args, **kw)

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[482]  code between +2 and +3

    for func in funcs:
        totals[func] = 0.0
        starttime = time.clock()
        for x in range(num_times):
            for func in funcs:
                apply(func)
        stoptime= time.clock()
        elapsed = stoptime-starttime
        totals[func] = totals[func] + elapsed

->

    for func in funcs:
        totals[func] = 0.0
        starttime = time.clock()
        for x in range(num_times):
            apply(func)
        stoptime= time.clock()
        elapsed = stoptime-starttime
        totals[func] = totals[func] + elapsed

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[482]  code between +2 and +3

print 'Running %s %d times took %.3f seconds' % (func.__name__, num_times
totals[func])

->

print 'Running %s %d times took %.3f seconds' % (func.__name__, num_times,
totals[func])

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{483} code at top of page;

>>> from makezeros import *
>>> profile.run(...)

->

>>> from makezeros import *
>>> import profile
>>> profile.run(...)

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