🌐 Mailman 3 June 2002 - Python-list - python.org

File Iterator - Print - Double New Lines
by Mike Brenner June 2, 2002

June 2, 2002

Hi Peter, That is not what happens, though. The first three outputs (from the first call to reader) do not get newlines. The second three outputs (from the second call to reader) get double newlines. The explanation that "the print statement adds newlines after every lines it prints" would explain the double newlines the second time, but it does not explain the lack of newlines the first time. Did you run it on a windows machine? Mike Peter wrote: Mike, the print statement adds newlines after every line it prints. If you want to see the real contents of the file, use sys.stdout.write(). Alternatively, you might want to strip the newlines from each line as you read them in. Depends what you are trying to do. MIKE's OUTPUT (CONTAINING HIS QUESTION): QUESTION: How to get SINGLE SPACING? Using Python 2.2.1, it does the same under win32all build 142 and running it from a DOS box without the windows extensions. trying it without the \n abc trying it with the \n a b c MIKE's PROGRAM: print "QUESTION: Why did it jump from NO LINE SPACING to DOUBLE SPACING?" print "QUESTION: How to get SINGLE SPACING?" print print "Using Python 2.2.1, it does the same under win32all build 142 and " print " running it from a DOS box without the windows extensions." def writer(list): f=open("tmp.tmp","w") for item in list: f.write(item) f.close() def reader(): f=open("tmp.tmp","r") for line in f: print line f.close() print "trying it without the \\n" writer(["a","b","c"]) reader() print "trying it with the \\n" writer(["a\n","b\n","c\n"]) reader()abc trying it with the \n a b c

1 0

ANN: PyUnitTestBrowser 002
by phlip_cpp＠yahoo.com June 2, 2002

June 2, 2002

Not Hyp: This is a graphical test browser; an alternative to GuiTestRunner: http://www.c2.com/cgi/wiki?PyUnitTestBrowser http://flea.sourceforge.net/browser002.zip It triggers tests when you change your source or test file. Therefor it provides One Button Testing for any editor. The latest version appears to work on an MS Windows box, and has a few fixes. If an error occurs, you can surf to the error point automatically with Vim. I'm currently adding support for Idle; this is new, but the first scratch appears in that zip file. Thanks for playing! -- Phlip http://www.greencheese.org/LucidScheming -- Who needs a degree when we have Web e-search engines? --

4 4

OverflowError: math range error ???
by Shagshag13 June 1, 2002

June 1, 2002

What does it mean "OverflowError: math range error" ??? I get this: Traceback (most recent call last): File "./build_index.py", line 91, in ? ii.updateWeight() File "./invertedindex.py", line 109, in updateWeight idf = ( math.log( (N + 1) / (df + 1) ) / math.log(2) + 1 ) OverflowError: math range error (ps: i am on Solaris, if this helps) thanks in advance, s13.

3 7

Re: File Iterator - Print - Double New Lines
by Peter Hansen June 1, 2002

June 1, 2002

Mike Brenner wrote: > > print "QUESTION: Why did it jump from NO LINE SPACING to DOUBLE SPACING?" > print "QUESTION: How to get SINGLE SPACING?" > print > print "Using Python 2.2.1, it does the same under win32all build 142 and " > print " running it from a DOS box without the windows extensions." [snip code with troubles] Mike, the print statement adds newlines after every line it prints. If you want to see the real contents of the file, use sys.stdout.write(). Alternatively, you might want to strip the newlines from each line as you read them in. Depends what you are trying to do. -Peter

1 0

wxPython
by yvon.thoraval＠free.fr June 1, 2002

June 1, 2002

does a macos 9 wxMacPython exists ? if yes, where ?

1 0

User input question
by Ken June 1, 2002

June 1, 2002

Hi, I have a question on user input. Suppose the user need to put in a search word like this: print "<form name=update action=search.cgi method=post>" # I am not sure if this line is right print "<br>Search:" print """<br><input type="text" name="searchword" size=12 value=%s maxlength=50>""" print """<input type="SUBMIT" value="SEARCH" name="SEARCH">""" print """<input type=reset name="reset" value="reset">""" print "</form> How do I pass searchword to another function with header: def search_word(word) ? Thanks p.s. i am new to python..... I used to work with C++

6 10

Re: Python/Scripting language performance
by Chris Dutton June 1, 2002

June 1, 2002

In article <mailman.1022812010.18367.python-list(a)python.org>, Skip Montanaro <skip(a)pobox.com> wrote: > I believe the Parrot project is also working on a more efficient virtual > machine for Perl (and eventually other languages). Just as a small note, Parrot is being developed from the start to work with languages besides Perl6, though that understandably is the emphasis. Whether language designers target the Parrot platform is their choice. Already a number of languages are being developed for Parrot. Jako : C-ish Cola : C#-type language Scheme BASIC miniperl And of course ou can always write programs in Parrot Assembly.

1 0

Re: Where can I find .join() in the docs
by Emile van Sebille June 1, 2002

June 1, 2002

Michael Chermside > Specifically, I went to the Python Library Reference (which you will > find stashed under your pillow), Chapter 2 (built-in stuff), then went > to the section on sequences (which Strings are) and the page on Strings. > ...which illustrates a difficulty for a newbie... knowing it's 'built-in stuff' then further knowing that strings are classified under sequences... -- Emile van Sebille emile(a)fenx.com ---------

2 1

Copying a database
by Billy Ng June 1, 2002

June 1, 2002

I need you guys help on mysql again. I need to push my python program to production now, but I don't want to recreate the mysql database on the production box. I want to copy the database from the development box to production box.. Would anybody please tell me how to do it, thanks! Billy Ng

4 3

File Iterator - Print - Double New Lines
by Mike Brenner June 1, 2002

June 1, 2002

print "QUESTION: Why did it jump from NO LINE SPACING to DOUBLE SPACING?" print "QUESTION: How to get SINGLE SPACING?" print print "Using Python 2.2.1, it does the same under win32all build 142 and " print " running it from a DOS box without the windows extensions." def writer(list): f=open("tmp.tmp","w") for item in list: f.write(item) f.close() def reader(): f=open("tmp.tmp","r") for line in f: print line f.close() print "trying it without the \\n" writer(["a","b","c"]) reader() print "trying it with the \\n" writer(["a\n","b\n","c\n"]) reader()

1 0