How would you go about creating a heap of shortcuts to a batch file?
I need to create about 2000 shortcuts to a batch file. The shortcuts need to have: Name: %parameter%.lnk Target: n:\Path\To\batchfile.bat %parameter% Start In: n:\Path\To\ Where the parameter is filled in by reading in a file with all the shortcut names. Extra bonus points for being able to apply the icon for an application at n:\path\to\application\app.exe At the moment I am looking like having to do this with VB, but I am trying hard to leave that behind for evermore. TIA googleboy -- http://mail.python.org/mailman/listinfo/python-list
A question about searching with multiple strings
Hi there. I have defined a class called Item with several (about 30 I think) different attributes (is that the right word in this context?). An abbreviated example of the code for this is: class Item(object): def __init__(self, height, length, function): params = locals() del params['self'] self.__dict__.update(params) def __repr__(self): all_items = self.__dict__.items() return '%s,%s,%s' % (self.height, self.length, self.function) I have a csv file that I use to store and retrieve all the info about each Item, one item per line. I have written a little peice of python that lets me search through all Items (after reading them into a variable called all_items) and will return matching results: for item in all_items: strItem = str(item) m = re.search(p[i], strItem, flags = re.I) if m: height = getattr(item, height) length = getattr(item, length) function = getattr(item, function) print height is %s, length is %s and function is %s % height, length, function This has the limitation of only working over a single search item. I want to be able to search over an uncontrollable number of search strings because I will have people wanting to search over 2, 3 or even (maybe) as many as 5 different things. I was thinking that I would try to write a function that created a sublist of Items if it matched and then run subsequent searches over the subsequent search strings using this sublist. I am not entirely sure how to store this subset of Items in such a way that I can make searches over it. I guess I have to initialize a variable of type Item, which I can use to add matching Item's to, but I have no idea how to do that(If it was just a list I could say sublist = [], what do I use for self defined classes? I Am also usure how to go about creating a function that will accept any number of parameters. Any assistance with these two questions will be greatly appreciated! Thanks! googleboy -- http://mail.python.org/mailman/listinfo/python-list
list.join()... re.join()...? Do they exist? (newbie questions...)
Hi. In some google posts I searched suggested that there was a list.join() thing that I assume works like string.join [which I notice is now deprecated in favour of S.join()] It seems that I have been misled. I start with a text file that I split up to run some formatting over the various sections with re.split. I want to join it back together again with a | delimeter and write it out to a new file. I looked for a re.join, but it seems that doesn't exist. I looked for a list.join after reading the aforementioned posts, but it doesn't seem to exist either. To get it to work I did this: List[0] = list0 List[1] = list1 List[2] = list2 List[3] = list3 cat_list = list0 + '|' + flatblurb + '|' + flatcontents + '|' + flates + '\n' file.write(concat_list) But it seems to me that there is probably something more pythonic than having to go about it in such a laborious fashion Would someone be so kind as to fill me in? TIA! googleboy -- http://mail.python.org/mailman/listinfo/python-list
Newbie regular expression and whitespace question
Hi. I am trying to collapse an html table into a single line. Basically, anytime I seewith nothing but whitespace between them, I'd like to remove all the whitespace, including newlines. I've read the how-to and I have tried a bunch of things, but nothing seems to work for me: -- table = open(r'D:\path\to\tabletest.txt', 'rb') strTable = table.read() #Below find the different sort of things I have tried, one at a time: strTable = strTable.replace(\s, ) #I got this from the module docs strTable = strTable.replace(., ) strTable = \s+.join(strTable) strTable = \s.join(strTable) print strTable -- The table in question looks like this: table width=80% border=0 tr tdnbsp;/td td colspan=2Introduction/td tddiv align=right3/div/td /tr tr tdnbsp;/td /tr tr tdiONE/i/td td colspan=2Childraising for Parrots/td tddiv align=right11/div/td /tr /table For extra kudos (and I confess I have been so stuck on the above problem I haven't put much thought into how to do this one) I'd like to be able to measure the number of characters between the p /p tags, and then insert a newline character at the end of the next word after an arbitrary number of characters. I am reading in to a script a bunch of paragraphs formatted for a webpage, but they're all on one big long line and I would like to split them for readability. TIA Googleboy -- http://mail.python.org/mailman/listinfo/python-list
Re: Newbie regular expression and whitespace question
Thanks for the great positive responses. I was close with what I was trying, I guess, but close only counts in horseshoes and um.. something else that close counts in. :-) googleboy -- http://mail.python.org/mailman/listinfo/python-list
Python CSV writer confusion.
Hi. I am trying to write out a csv file with | instead of comma,
because I have a field that may have many commas in it. I read in a
csv file, sort it, and want to write it out again.
I read the example that says:
import csv
writer = csv.writer(open(some.csv, wb))
writer.writerows(someiterable)
The someiterable is what is confusing me.
class Image(object):
def __init__(self, title, date, genre, data, value, filename):
params = locals()
del params['self']
self.__dict__.update(params)
def __repr__(self):
all_items = self.__dict__.items()
return '%s,%s,%s,%s,%s, %s' % (self.title, self.date,
self.genre, self.data, self.value, self.filename)
def read_images(filename):
csv_file = open(filename, rb)
reader = csv.reader(csv_file, dialect='excel', delimiter='|')
images = [Image(*[field.strip() for field in row]) for row in
reader]
csv_file.close()
return books
def sort_images(filename, *attr_names):
csv_file = open(filename, rb)
reader = csv.reader(csv_file, dialect='excel', delimiter='|')
if __name__ == '__main__':
images = read_images(rD:\path\to\imagespipe.csv)
def get_key(*attr_names):
def key(image):
return [getattr(image, name) for name in attr_names]
return key
images.sort(key = get_key(filename))
t = open(r'D:\path\to\filename_sort1.csv', 'w')
for image in images:
print book
#t.write('%s\n' % book) %Before I needed | delimited, this
worked
#csv.writer(t, dialect='excel', delimiter='|')
output = csv.writer(t, dialect='excel', delimiter='|')
output.writerows()
#output.writerows(image)
#output.writerow(image)
t.close()
This returns an error that says Error: sequence expected
My understanding of this is that I am creating a list of lists and I am
iterating over it (for image in images), and that image is a list, and
is therefore iterable...?
I am a bit new at this, and would greatly appreciate any assistance.
TIA
googleboy
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Confused newbie needs help with __init__() takes exactly 11 arguments (1 given)
I've written a little script to parse a csv file then use seach/replace over a template to create a file for each line in the file. It pikes out when I call the function that parses the csv (read_revs). If I have inadvertantly left an extra comma or two in the comma field, it gives an error that says: Traceback (most recent call last): File C:\dev\python\Lib\site-packages\pythonwin\pywin\framework\scriptutils.py, line 310, in RunScript exec codeObject in __main__.__dict__ File d:\dev\python\projects\books\revgen3.py, line 177, in ? gen_html() File d:\dev\python\projects\books\revgen3.py, line 92, in gen_html revlist = read_revs(r'D:\library\work\websites\gobooks\cgi\reviews.csv') File d:\dev\python\projects\books\revgen3.py, line 38, in read_revs reviews = [Review(*[field.strip() for field in row]) for row in reader] TypeError: __init__() takes exactly 11 arguments (13 given) Which I understand totally, because I can see the two extra fields in the csv. Problem is, if I correct that problem it gives me confusing output that is identical except for the final line which says: TypeError: __init__() takes exactly 11 arguments (1 given) I don't get how it goes from 13 arguments to 1! I now have 10 fields and can understand that it is passing self as the 11th argument. Particularly confusing to me was that when I translated this from a windows box running Python 2.4 to an OpenBSD box running python 2.3, it just worked on the unix box. Find below an the code and an example of the csv file in question. TIA googleboy - param1,param2,param3,param4,param5,param6,param7,param8,param9,comments data1,data2,data3,data4,data5,data6,data7,data8,data9,Comments on the item reviewed go here. Sometime, but not all the time, there might be extra commas in this text. data1,data2,data3,data4,data5,data6,data7,data8,data9,Comments on the item reviewed go here. -- import string, os, re, sys, operator, csv class Review(object): def __init__(self, param1, param2, param3, param4, param5, param6, param7, param8, param9, comments): params = locals() del params['self'] self.__dict__.update(params) def __repr__(self): all_items = self.__dict__.items() return '%s,%s,%s,%s,%s,%s,%s,%s,%s,%s' % (self.param1, self.param2, self.param3, self.param4, self.param5, self.param6, self.param7, self.param8, self.param9, self.comments) def read_revs(filename): csv_file = open(filename, rb) reader = csv.reader(csv_file) reviews = [Review(*[field.strip() for field in row]) for row in reader] csv_file.close() return reviews def gen_revs(): revlist = read_revs(r'd:\dev\python\projects\books\reviews.csv') revheader = revlist[0] all_reviews = revlist[1:] template = open(r'd:\dev\python\projects\books\template.txt', 'r') sTemplate = template.read() for review in all_reviews: param1 = getattr(review, 'param1') param2 = getattr(review, 'param2') param3 = getattr(review, 'param3') param4 = getattr(review, 'param4') param5 = getattr(review, 'param5') param6 = getattr(review, 'param6') param7 = getattr(review, 'param7') param9 = getattr(review, 'param8') param9 = getattr(review, 'param9') comments = getattr(review, 'comments') output = template % (param1, param2, param3, param4, param5, param6, param7, param8, param9, comments) f=open(rd:\dev\python\projects\books\%s.html % param1, 'w') f.write(output) f.close() -- http://mail.python.org/mailman/listinfo/python-list
Confused newbie needs help with __init__() takes exactly 11 arguments (1 given)
Mostly I posted to try to find out more about the arguments being passed to __init__, and why they'd be 13 one second and 1 the next. I also was hoping to get a little more background on what is happening under the hood of the csv function I've plagiarised. I haev read the online python doco on it, but I am not really entirely sure in my own head how it is breaking down that csv entry. I am actually quite familiar with handling strings and lists in python, though less so with dictionaries. I did like your trick with telling splut to stop after 9 times. I hadn't seen that before. Thanks for the response. :-) Googleboy -- http://mail.python.org/mailman/listinfo/python-list
cgi form validation problems
Hi.
I am writing up my own web form. I'm a bit of a newb, and read up many
different how-tos and examples and documentaion. I finally had it
working just great until I decided that I wanted to add some extra
logic because there's one form that submits a particular type of
information. a little extra validation, and the creation of a list of
the values to be mailed in to the site manager.
The code below is where I am going wrong (edited for brevity):
form=cgi.FieldStorage()
rev_fields = { param1:None, param3:None, param6:None,
param5:None, param8:None, param9:None, param10:None,
param11:None }
# Everything worked until I added the following if statement:
if form.has_key(param8): # Only one form has this
param8 = form.getvalue(param8)
if param8 == 0: # 0 is the default value
print Content-type: text/html
debug(You must give the item a rating)
for field in form.keys():
value = form[field].value
if rev_fields.has_key(field):
rev_fields[field] = value
for key in rev_fields:
if rev_fields[key] == None:
print Content-type: text/html
debug(All fields must be filled in. Please check your %s
submission. % key)
else:
#feedback = (%s, %s, %s, %s, %s, %s, %s, %s %
(form[param1].value, form[param3].value, form[param6].
value, form[param5].value, form[param8].value,
form[param9].value, form[param10].value, form[param11].value)
#feedback = (%s, %s, %s, %s, %s, %s, %s, %s %
(form.getvalue(param1), form.getvalue(param3), form.getvalue(
param6), form.getvalue(param5), form.getvalue(param8),
form.getvalue(param9), form.getvalue(param10),
form.getvalue(param11))
feedback = (%s, %s, %s, %s, %s, %s %
(rev_fields[param1], rev_fields[param3], rev_fields[param6],
rev_fields[param5], rev_fields[param8], rev_fields[param9],
rev_fields[param10], rev_fields[param11])
#feedback = form[ score ].value
msg = (From: %s\r\nTo: %s\r\nSubject: %s\r\n\r\n Feedback: %s\r\n\r\n
%
(rev_fields[param2], rev_fields[param7], rev_fields[param3],
rev_fields[param6]))
If I comment out the 'else:' logic, it works great. But then I don't
get a list called feedback containing all teh bits I want, The error I
get is really strange, too:
[Mon Aug 15 05:54:58 2005] [error] [client 60.224.106.116] Premature
end of script headers: /var/www/users/senta/html/gobooks/cgi/form.py
File /var/www/users/senta/html/gobooks/cgi/form.py, line 99
msg = (From: %s\r\nTo: %s\r\nSubject: %s\r\n\r\n Feedback:
%s\r\n\r\n %
^
SyntaxError: invalid syntax
Just a simple assignation I did think it might have been an
indentation error, but I changed that around and got a message telling
me about an indentation problem, which this doesn't do.
I have tried several different ways to assign the values, as you can
see by the commented out lines. Tried getting the values directly from
teh form, and also from the validated rev_fields dictionary. I'd be
extremely grateful to anyone who helps me through this.
TIA
Googleboy
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Re: Parsing a log file
I am similarly not a programmer but am trying to learn python to do tasks like this. I would read through the regular expressions tutorial. You could probably easily read in all teh lines of the log file, and then split them up by (spaces).. If you're right about the lines all being consistent, that should easily handle each line. From there you could amost certainly drop off the trailling milliseconds on the timestamps and do the simple data manipulation you'd like. here are a couple of links: http://www.amk.ca/python/howto/regex/ http://gnosis.cx/publish/programming/regular_expressions.html HTH googleboy -- http://mail.python.org/mailman/listinfo/python-list
Some newbie cgi form questions...
Hi there. I am having a bit of a play with teh cgi module, trying to figure out how to process a web form. I have come a little ways from reading up variou sexamples and tutes that I've found on the net, but they all leave me with a couple of questions: My code below has an attempt at validation that doesn't seem to do anything. I am expecting that it will report an error if all the fields haven't been filled in. Instead, it seems to just ignore an empty field and carry on. The second for loop is an attempt at trying to print all the values that were entered on the for without presenting the hidden values. I'd really like to do this, but I can't seem to figure out how to make a special case for hidden form values, nor can I find an example of how to do it in any of the many python cgi pages I've visited so far. If I removed the if not type=hidden and fix the indentation this works pretty much as I expect. TIA Googleboy print 'Content-type: text/html\n\n' print htmlheader for key in form.keys(): if not form.has_key(key): print h1 ERROR! h1BR print Please go back and fill in all fields. All fields are required.br break print You entered the following:br for key in form.keys(): if not type=hidden: print form[key].value + 'brbr' print 'br' + timestamp print 'brbr' print '/body/html' -- http://mail.python.org/mailman/listinfo/python-list
Re: Some newbie cgi form questions...
for key in form.keys():Yes, I know which fields are hidden because I made them that way, but I am trying to figure out a way I can iterate over the fields and do one thing with hidden fields (assign them to variables that tell the form how to process) and a different thing with non hidden fields (present them back to the browser with after emailling them on to the form owner). I want this script to work fro several forms on the same webserver, some of which will have several different and individual names. I am also hopeful that I may be able to extrapolate from that ways to differentiate other things from my form input things, but we'll see how it goes. My html code looks like this: h1Send Feedback/h1 form action=cgi/formparse.py method=get input name=subject type=text size=32 maxlength=196Subjectbr input name=name type=text maxlength=64Your namebr input name=email1 type=text size=24 maxlength=128Your email address. br brbrPlease let me know your thoughts below.brtextarea name=thoughts cols=64 rows=12/textareabr input type=submit value=Submit input type=hidden name=recipient value=[EMAIL PROTECTED] input type=hidden name=email value=[EMAIL PROTECTED] input type=hidden name=mailserver value=localhost input name=Clear type=button value=Clear/form In other news, I have tried suggested syntaxes aboce (thanks guys!) but I get strange errors. If the following: for key in form.keys(): if not form.keys(): print h1 ERROR! h1BR print Please go back and fill in all fields. All fields are required.br I get a traceback in teh error_log file that looks like this: Traceback (most recent call last): File cgi/form.py, line 34, in ? for key, value in form.items(): File /usr/local/lib/python2.3/cgi.py, line 533, in __getattr__ raise AttributeError, name AttributeError: items if this: for key in form.keys(): if not form.keys()[key]: print h1 ERROR! h1BR print Please go back and fill in all fields. All fields are required.br print '/body/html' the I get this traceback: Traceback (most recent call last): File /var/www/users/senta/html/gobooks/cgi/form.py, line 35, in ? if not form.keys()[key]: TypeError: list indices must be integers As you can see, I am using python 2.3 (my web service provider is responsible for this - I'd use 2.4.1 if I could) TIA googleboy -- http://mail.python.org/mailman/listinfo/python-list
Re: Some newbie cgi form questions...
Robert Kern wrote: Diez B.Roggisch wrote: Traceback (most recent call last): File /var/www/users/senta/html/gobooks/cgi/form.py, line 35, in ? if not form.keys()[key]: TypeError: list indices must be integers As you can see, I am using python 2.3 (my web service provider is responsible for this - I'd use 2.4.1 if I could) That code above can't work - you want something like if not form.keys() in key: This thread has to rank somewhere in the top ten threads with respect to the density of obviously wrong code samples. LoL! Yeah, I am guessing I started out not too far from something that was doing what I wanted until now, I have gradually moved further and further away from stuff that looks to me like it should work as python code. I've even managed to turn code that was working into code that is broken somehow... At the moment this bit of code is about validating that stuff was entered into the form properly, and about doing something with some types of form inputs and not others. I try all sorts of things and they just give me exception errors. And I just don't know what use to make of advice that says stuff like The form is not a dictionary. :( I have spent the whole weekend doing searches and reading tutorials on this before I posted, I have a form that I get working and doing most of what I want. It is just the last bits that I can't figure out, and the tutes don't seem to cover the stuff I am trying to do. O well, I guess I will go bang my head against it or a few more days and then hopefully an answer will show up in my brain somewhere. Thanks for your help. Googleboy. -- http://mail.python.org/mailman/listinfo/python-list
Re: more newbie list questions
Ali wrote:
It's not really clear what you mean?
Ah. sorry. Let me try again.
I start with a csv that looks something like this:
title, author1, author2, publisher, code, ISBN
frogs of canada, andy humber, , springer press, foc2, 111-20345-556
newts of the UK, nigel snodgrass, sarah strauss, cambridge press,
nsss23,32-443567-130
amphibian environments, nigel snodgrass, , cambridge press, nsxx11,
32443567-120
First problem:
I have a seed file which I have placed a set of easily searchable
keywords (%author1%, %publisher% etc.) in. I want to be able to
replace these keywords with the relevent values from each book, in
order to create an individual text file for each book called code.txt
(where the word code is replaced by the code of each book)
I've read the tutorial and (I think I)know how to use regular
expressions to make the substitions, but I can't figure out how to get
to the individual values of each book.
I have been trying the following:
++
import string, os, re, sys, operator, csv
class Book(object):
def __init__(self, title, author1, author2, publisher, code,ISBN):
params = locals()
del params['self']
self.__dict__.update(params)
def __repr__(self):
all_items = self.__dict__.items()
return str(all_items)
def read_books(filename):
reader = csv.reader(csv_file)
books = [Book(*[field.strip() for field in row]) for row in reader]
csv_file.close()
return books
booklist = read_books(c:\path\to\books.csv)
header = booklist[0]
all_books = booklist[1:]
Template = open(r'c:\path\to\cell.txt', 'r')
sTemplate = Template.read()
author1 = getattr(all_books, 'author1') # trying to assign the author
value to the variable author1.
sAuth = re.sub('%author%', author1, sTemplate) # replace %author1% with
the value in author1 in the variable sTemplate)
++
The getattr causes an error that says AttributeError: 'list' object
has no attribute 'author1' so I think I am reading the operator
library page on the python site wrong somehow.
once this works, I move onto the second problem, which is to write out
the string after the substitions to a new file called e.g. foc2.txt
(for the frogs of canada book).
I really am not sure how to go about this. I was thinking of something
like concatenating three strings together
path = r/'c:\path\to
code = getattr(code, all_books)
extension = '.txt/''
filename = path + code + extension
f = open(filename, 'w')
however I have serious doubts that doing that will work.
I guess what I am needing, if it doesn't, is some sort of method of
substituting a variable's value into the following:
f = open(r'c:\path\to\%subs%.txt, 'w')
The third thing I am hoping to acheive is to append an extra field to
each book called 'filename' which will simply be a concatenation of the
'code' field + '.txt'. Further thought suggests that I should create
the field first, even if it is empty, so that the books still all
conform to the Book class. Then it simply becomes a question of how to
I change the value of a field in these lists. I am sure that the
answer to that was something I found in the tute, or it will be in my
deitel python book somewhere... The hard bit is part one (assigning
the value of a field to a variable)
Thanks for your help.
Googleboy
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Re: more newbie list questions
Thanks for this. It ahs been very helpful.
I realised that my problem using getattr were because I was trying to
use it over the list of lists, instead of each book. I have written up
a for loop now, and I think I am a lot closer:
for book in all_books:
author1 = getattr(book, 'author1')
sTemplate.replace('author1', author1)
found = sTemplate.find('%author1%')
print '\n.\n.\n'
print author1
print '\n'
print found
print sTemplate
You will notice that I print out various things. I am having some
troubles.
The resulting output of this loop is as follows:
andy humber
47
The title is %title%. brbr
The author is %author1% %author2% brbr
The Publisher is %publisher1% %publisher2% brbr
The ISBN is %ISBN% brbr
This is obviously correctly assigning the author's name to the author1
variable, which I was my problem.
It is finding my search string at teh 47th character of the sTemplate
string, which is great.
But it doesn't seem to want to replace the search string with the value
of the author1 variable.
Is there something else I am missing here?
Thanks for the advice.
regards,
googleboy
--
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more newbie list questions
Hi there.
I am doing a bunch of processing over a list of lists, and am
interested in doing several things taht don't seem to be working for me
just at the moment.
I have a list of books with several fields (Title, Author1, Author2,
Publisher, ISBN) in a csv.
I have a cell.txt file that looks like this:
++
The title is %title%. brbr
The author is %author1% %author2% brbr
The Publisher is %publisher1% %publisher2% brbr
The ISBN is %ISBN% brbr
++
I know how to do something like sAuth = re.sub('%author1%', author1,
sTemplate), but I can't figure out to populate variables within python
from the list of fields.
The second thing I am trying to figure out is how to add a field (or
populate an empty field) called filename with the value of ISBN +
'.txt', though I hope this becomes pretty self evident after someone
helps me with the above.
The last thing that is vexing me at the moment is something I am not
sure if it is possible. Once I have populated this filename field, I
will want to try to do something like:
for book in all_books
open(r'd:\path\to\files\%filename%', 'a')
some_function
Where I replace %filename% with the value of the filename field for
each book. Is it possible to do some sort of search and replace like
that over a command within python?
Or is there another way entirely different to accomplish such a task,
like maybe assigning the path/filename to a variable... ?
TIA!
Googleboy
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Re: what is the best way to determine system OS?
I did somethign that really seems far brighter... approaching it from a slightly different angle I just search through each line for the right field title, and then take that field's value from teh last line of output. Doesn't matter what OS, doesn't matter what format now. It can cope with it all. :-) Thanks for the advice! I learned a bunch. -- http://mail.python.org/mailman/listinfo/python-list
Re: how can I sort a bunch of lists over multiple fields?
I'd be just such a newbie; I don't understand why it would matter if I left the book instance referencing itself However these wonderful responses have gotten me a very long way towards my goal. I just have a couple of quick questions. firstly, I am trying hard to figure out how to create a new file with the list rather than print to standard out. I haev done this: for book in books: print book # just to be sure it works as I expect sort1 = open(r'D:\path to\sort1.csv', 'w+') print sort1, book sort1.close() and this creates the file as I expect, however it creates it populated with only the information of the final book in the sorted list. I am guessing I need to figure out how to append as part of this loop, but the only info I have found so far suggests this should append by default? Secondly, I am wondering how I can get a search algorithm that will search by multiple fields here, so that I can (as one example) sort the books out by author and then date, to present a list of the book grouped by authors and having each group presented in a chronological order, or by author and title, grouping all the books up into authors presenting each group alphabetically by title. Or by publisher and date, or by publisher and code I have tried things like books.sort(key = operator.attrgetter(author), key = operator.attrgetter(title) and books.sort(key = operator.attrgetter(author, title) but they both give errors. Is this where using cmd functions instead of keys becomes necessary? Thanks! googleboy -- http://mail.python.org/mailman/listinfo/python-list
how can I sort a bunch of lists over multiple fields?
I didn't think this would be as difficult as it now seems to me. I am reading in a csv file that documents a bunch of different info on about 200 books, such as title, author, publisher, isbn, date and several other bits of info too. I can do a simple sort over the first field (title as it turns out), and that is fine as far as it gets: import string bookData = open(r'D:\path\to\books.csv', 'r') sBookData = bookData.read() lBooks = string.split(sBookData, '\n') lBooks.sort() sorted = string.join(lBooks, '\n') output = open(r'D:\path\to\output.csv', 'w') output.close() I really want to be able to sort the list of books based on other criterium, and even multiple criteria (such as by author, and then by date.) I am using python 2.4 and have found this site: http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/305304 and so I tried doing things like lBooks.sort(cmp=cmp5) Traceback (most recent call last): File interactive input, line 1, in ? NameError: name 'cmp5' is not defined (I was hoping that cmp5 meant it would use the 5th item in the lists to sort across) lBooks.sort(key=lambda i:i[4]) Traceback (most recent call last): File interactive input, line 1, in ? File interactive input, line 1, in lambda IndexError: string index out of range (I was hoping for similar things) would you be so kind as to point me in the right direction? THanks! googleboy -- http://mail.python.org/mailman/listinfo/python-list
what is the best way to determine system OS?
Hi there. I am writing a little app tha tI would like to make cross-platform (debian, RH, Fedora, Solaris, AIX, etc) Originally I decided to check what uname returned, as I didn't think it mattered beyond the detail of Linux or SunOS etc. Recently I have learned that FC3 breaks my script, so I need to be able to determine not simply Linux but to know exactly what unix the script is being run on. What is the best way to determine this? Thanks! googleboy -- http://mail.python.org/mailman/listinfo/python-list
Re: what is the best way to determine system OS?
Thanks for the edifying responses. I will try out these things and figure out if I have enough to solve my problem. What this script does is use take the output of vmstat to report idle cpu cycles (or memory stuff, etc.) over a period specified by a parameter, all the better to be a plugin for a monitoring service. Basically it parses the output of the command, runs through a whole bunch of regex to discard everything not required and then reports the info. Everything I had checked out that responded Linux to a uname command had identical output for vmstat until FC3. FC3 seems to use similar output to BSD. I wrote a simple if-then loop to try to determine which regex function to use, but it obivously isn't working under fc3. I could post the script if you'd like to look at it, but I was a little bit afraid of looking like a total newbie. I don't get an excuse to write code very often so it is probably quite lame. B) I will have a look at platform and see what I can come up with. Delving into libraries seems a little bit much for my current level (though lots of fun). Thanks for the responses! googleboy -- http://mail.python.org/mailman/listinfo/python-list
