Errata

Does the module "dates.py" actually exist? I couldn't find it on
www.python.org or the vaults of parnassus. It did come with my Python for
Win32 or Python for Unix.

The comment '# returned in alpha order' should follow the statement 'sales.items()'
instead of 'sales['South']'

>>> T1.date = asc2sec('1/1/1999')
...
>>> T2.date = asc2sec('5-Jan-1999')

Should read as follows:

>>> T1.date = transac.asc2sec('1/1/1999')
...
>>> T2.date = transac.asc2sec('5-Jan-1999')

If not the following error will occur:

Traceback (innermost last):
File "<stdin>", line 1, in ?
NameError: asc2sec

In the first sentence of the third paragraph, the url given for examples, http://starship.python.net/crew/mhammond/ppw32/, is a
deadlink as of 2/6/2000 7 pm est.

"renameAccount(seDates lf, oldAcct..." ???

it now reads: "VarArrayHighBound(array,
dimension) and VarArrayHighBound(array, dimension) are the eqivalents of
UBound() and LBound()."

Should read;

"VarArrayHighBound(array, dimension) and VarArrayLowBound(array,
dimension) are the eqivalents of UBound() and LBound()."

>>> x1App.Workbooks(1).Sheets(1).Cells(1,1).Value = "Python Rules!"

which appears as the second-to-last line in the code listing.

self.getStyleDictionary()
should be
self.getStyleList()

The declared constant FMTID_UserDefinedProperties should really be named
FMTID_SummaryInformation, in order to agree with ObjIdl.h.

Note that the value corresponds to the correct name, so the code still
works fine. It is only the name that is incorrect.

At the bottom of the page, the SQL statement needs to be enclosed in double quotes, or you will get a syntax error. It now reads:

>>> mycursor.execute('UPDATE Invoices SET InvoiceDate={d '1999-04-15' }
WHERE InvoiceID=199904001')

Should read:

>>> mycursor.execute("UPDATE Invoices SET InvoiceDate={d '1999-04-15' }
WHERE InvoiceID=199904001")

In the second paragraph, 'cursor.commit()' should be 'conn.commit()' because commit() is a method of the connection object, not the cursor object.

>>> for i in range(daoRS.Fields.Count):
... daoField =
daoRS.Fields[i] <=====
... print '%s = %s' % (daoField.Name, daoField.Value)

The index in the first line in the if loop should use parens instead of square
brackets, like in the example above the for loop. So it should read:

>>> for i in range(daoRS.Fields.Count):
... daoField =
daoRS.Fields(i) <=====
... print '%s = %s' % (daoField.Name, daoField.Value)

(server_msg, body, octets) = a.retr(1)

Should read:

(server_msg, body, octets) = a.retr(thisNum)

With the code as written, the program will retrieve the first mail message
NumMsgs times instead of retrieving each mail message.

In the description of the functions that log messages to the NT Event Log, the
text lists LogInfoMsg(), LogErrorMsg(), and LogWarningMessage()--this last does
*not* abbreviate 'Msg' as the others do, and calling it fails with an Attribute
Error stating that LogWarningMessage is not found. The Appendix does list all
three functions as ending in ...Msg() rather than ...Message().

"myport.send('ATI15') # ask modem to identify itself"

I suggest this should read:

"myport.write('ATI15') # ask modem to identify itself"

No send method exists my Serial.py module, but a write method is present.
Subsequent examples (p377, bottom third of the page) do not repeat this
mistake: they demonstrate the use of the write method.

the code line
clientsock.connect('tahoe',8578)

should read
clientsock.connect( ('tahoe',8578) )

On Line 20 of the code sample, there should be a semicolon after the expression:

"frame = MyFrame(NULL, -1, "Hello from wxPython")

Should read:

"frame = MyFrame(NULL, -1, "Hello from wxPython");

"menu.Append(ID_EXIT, "E&xit", "Termainate the program")"

Should read:

"menu.Append(ID_EXIT, "&Exit","Terminate the program")"

Also, menu.AppendSeparator() gets an AttributeError:
(version problem or placement?) I'm new to wxPython,
and these are somewhat obvious errors unless you are
a newbie.

"dateOK = (date == dates.testasc(date))"

Should read:

"dateOK = (date == string.split(dates.testasc(date))[0]) #nk"

The last 4 lines in the table say that the values 1-9 can be used for generic
messages (Message Text = "%1").

But in the source-file "PythonServiceMessages.mc" the definition is:
----------
MessageId=0xF000
Severity=Error
SymbolicName=MSG_ER1
Language=English
%1
----------

so I think the right values are 0xF000 - 0xF008.

{online examples} I recently downloaded the examples for this book. I
discovered an error within the module 'dates.py'. In line 53 it reads:

LATE = mktime(2038,1,15,0,0,0,0,0,0)

It should read:

LATE = mktime((2038,1,15,0,0,0,0,0,0))

It is just a minor thing, but the whole dtbrowse won't work with this error.