Re: [Tutor] help with GUI
Christopher Spears wrote: > My first problem is that the knob on the scrollbar > doesn't move when I drag it. I would like my GUI to > by wider as well. Finally, I need to figure out how > to get the number selected from the scrollbar to the > function that does the conversion. Just guessing from a quick look at the pygtk docs... Maybe you need to set_sensitive(True) on the VScale. Call VScale.get_value() to get the value. I'm not sure if there are any pyGTK experts on this list, if you don't get help here you might try the pyGTK list at http://www.daa.com.au/mailman/listinfo/pygtk Kent ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] Question regarding commit/backout of a message using the pymqi module
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Hi everyone,
Could someone help explain what I am doing wrong in
this code block?
This code block is an excerpt from a larger file that receives
transmitted files via IBM WebSphere MQSeries an drops it to the local
file system.
Transmission of the file works as designed but it has a flaw.
If the file cannot be created for whatever reason, the transmitted
message is lost.
What I am trying to do is ensure that a file transmit is considered
successful only after the created file's checksum matches.
If not, the code should treat it as an error and roll back the message
to MQSeries without a commit.
The basis for this should be around the pymqi.QueueManager class which
is named mq in the block listed below.
On execution, I get the traceback of:
Traceback (most recent call last):
File "M:\MQ\MQ\Scripts\receiver.py", line 269, in ?
receiver.run()
File "M:\MQ\MQ\Scripts\receiver.py", line 109, in run
self.connect()
File "M:\MQ\MQ\Scripts\receiver.py", line 118, in connect
self.qm.begin()
File "c:\python24\lib\site-packages\pymqi.py", line 738, in begin
raise MQMIError(rv[0], rv[1])
pymqi.MQMIError: MQI Error. Comp: 1, Reason 2121: WARNING:
MQRC_NO_EXTERNAL_PARTICIPANTS
Do you have any idea why this might be occurring?
class Receiver(object):
def __init__(self,qm_name,queue_name):
self.qm_name = qm_name
self.queue_name = queue_name
# Will be set later
self.qm = None
self.message = None
def run(self):
self.connect()
self.get()
def connect(self):
"""
Connect to queue manager
"""
try:
self.qm = mq.QueueManager(options.qmanager.upper() )
self.qm.begin()
except mq.PYIFError, err:
mqevlog.event("error",err)
sys.exit(1)
def get(self):
"""
Get a message from queue.
"""
queue = mq.Queue(self.qm, self.queue_name)
pmo = mq.pmo(Options = CMQC.MQPMO_SYNCPOINT)
md = mq.md()
while True:
try:
var = queue.get(self.message, md, pmo )
except mq.MQMIError,e:
if e.reason != CMQC.MQRC_NO_MSG_AVAILABLE:
mqevlog.event("error",e)
sys.exit(1)
break
else:
buff = StringIO(var)
tree = ElementTree(file=buff)
# Extract required elements and assign to local
variables
key = "this should be a well-kept secret"
file_name = tree.find("dest").text
creation_time = tree.find("creation_time").text
contents = tree.find("contents").text
check = tree.find("checksum").text
#Decode temp file
original = file_encoder.decode(contents)
# Drop file to disk
if os.path.exists(file_name) is False:
open(file_name,"wb").write(original)
else:
mqevlog.event(sys.argv[0],"error","Output file
path/name already
exists")
sys.exit(1)
# Get checksum of newly created file
sum=csums.getsum(file_name)
# Compare checksum of created file with value
transmitted
if
csums.checksum_compare(sys.argv[0],sum,check,file_name) == True:
queue.commit()
sys.exit(0)
else:
queue.backout()
mqevlog.event("error","CheckSums of
received/transmitted files do not match")
sys.exit(1)
Any help/insight you can provide on this would be greatly appreciated.
- --
Thank you,
Andrew Robert
Systems Architect
Information Technologies
MFS Investment Management
Phone: 617-954-5882
E-mail: [EMAIL PROTECTED]
Linux User Number: #201204
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Version: GnuPG v1.2.1 (MingW32)
Comment: GnuPT 2.7.2
iD8DBQFEmoCtDvn/4H0LjDwRAonCAKCAiWPpO1UcXWMKIP8xPzCtzP6eLACeMWFO
qmHgdq/nI3gJ1v3jquDKnu8=
=Ga33
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[Tutor] How to make the loop work?
Hi, I'm new to python trying to figure how to make this work.
c=0;d=raw_input("input number limit: ")
while 1:
c = c + 1
if c == d: break
print c,
My idea is to able to input a number to limit the print out of this loop.
But this will not work. Where is the error?
Ivan
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Re: [Tutor] How to make the loop work?
It's basically correct but you need to convert the raw_input to integer.
c=0
d=int(raw_input("input number limit: "))
while 1:
c = c + 1
if c == d:
break
print c
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[Tutor] Python Word Unscrambler
Python
Word Unscrambler:
OK,
this is the Python code I'm using to unscramble words but it unscrambles one
word at a time, can someone please help me out and tell me how can I improve my
code to make it decrypt several words at a time?
P.S: Another thing is that it prints the solution 4 or 5 times don't know why.
Sorry,
I'm very new to Python.
Please help if you can.
Thanks a ton!
CODE
import
string
def anagrams(s):
if s == "":
return [s]
else:
ans = []
for an in anagrams(s[1:]):
for pos
in range(len(an)+1):
ans.append(an[:pos]+s[0]+an[pos:])
return ans
def dictionary(wordlist):
dict = {}
infile = open(wordlist, "r")
for line in infile:
word =
line.split("\n")[0]
dict[word] = 1
infile.close()
return dict
def main():
anagram = raw_input("Please enter a words you need
to unscramble: ")
anaLst = anagrams(anagram)
diction = dictionary("wordlist.txt")
for ana in anaLst:
if diction.has_key(ana):
print
"The solution to the jumble is", ana
main()
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Re: [Tutor] How to make the loop work?
Ivan Low wrote:
> Hi, I'm new to python trying to figure how to make this work.
>
> c=0;d=raw_input("input number limit: ")
>
> while 1:
> c = c + 1
> if c == d: break
> print c,
>
>
> My idea is to able to input a number to limit the print out of this loop.
> But this will not work. Where is the error?
>
"Will not work" does not (in general) give us enough to go on. Please in
the future tell us what the evidence of the problem is - e.g. unexpected
output, exception, ... If it is an exception please include the
traceback in your post.
--
Bob Gailer
510-978-4454
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Re: [Tutor] How to make the loop work?
Hi Bob,
You can use a while loop in this case, but range() might be a bit more appropriate!
c = 0
d = raw_input("Enter Number Limit: ")
for i in range(int(d)): #note, we make sure "d" is an integer!
c = c + 1
print cOn 6/22/06, Bob Gailer <[EMAIL PROTECTED]> wrote:
Ivan Low wrote:> Hi, I'm new to python trying to figure how to make this work.>> c=0;d=raw_input("input number limit: ")>> while 1:> c = c + 1> if c == d: break
> print c,>>> My idea is to able to input a number to limit the print out of this loop.> But this will not work. Where is the error?>"Will not work" does not (in general) give us enough to go on. Please in
the future tell us what the evidence of the problem is - e.g. unexpectedoutput, exception, ... If it is an exception please include thetraceback in your post.--Bob Gailer510-978-4454___
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[Tutor] for loops over multiple lists of the same length
I feel like there should be a better way to do this process: Can you please help? (This is trivial example code I created off the top of my head, but the same concept that I am trying to do elsewhere.) class Person(object): def __init__(self, first_name, age, fav_color): self.first_name = first_name self.age = age self.fav_color = fav_color first_names = ['emily', 'john', 'jeremy', 'juanita'] ages = [6, 34, 1, 19] colors = ['blue', 'orange', 'green', 'yellow'] ageIter = ages.iter() colorIter = colors.iter() people = [Person(name, ageIter.next(), colorIter.next()) for name in first_names] print people any suggestions, please? Emily ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] for loops over multiple lists of the same length
Emily Fortuna wrote: > I feel like there should be a better way to do this process: > Can you please help? > (This is trivial example code I created off the top of my head, but the > same concept that I am trying to do elsewhere.) > > class Person(object): > def __init__(self, first_name, age, fav_color): > self.first_name = first_name > self.age = age > self.fav_color = fav_color > > first_names = ['emily', 'john', 'jeremy', 'juanita'] > ages = [6, 34, 1, 19] > colors = ['blue', 'orange', 'green', 'yellow'] > > ageIter = ages.iter() > colorIter = colors.iter() > people = [Person(name, ageIter.next(), colorIter.next()) for name in > first_names] > > print people > > any suggestions, please? The builtin function zip() does this: people = [Person(name, age, color) for name, age color in zip(first_names, ages, colors)] Kent ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] How to make the loop work?
Bob Gailer wrote:
> Ivan Low wrote:
>> Hi, I'm new to python trying to figure how to make this work.
>>
>> c=0;d=raw_input("input number limit: ")
>>
>> while 1:
>> c = c + 1
>> if c == d: break
>> print c,
>>
>>
>> My idea is to able to input a number to limit the print out of this
>> loop.
>> But this will not work. Where is the error?
>>
> "Will not work" does not (in general) give us enough to go on. Please
> in the future tell us what the evidence of the problem is - e.g.
> unexpected output, exception, ... If it is an exception please include
> the traceback in your post.
>
Hi, thanks for helping.
After the reply from Peter by suggesting that I convert the raw_input to
int, it works.
Sorry that I didn't supply enough information in my post.
However I'm curious about the result of my initial code after I enter a
number which
prompted by the raw_input it just keep printing numbers without break.
Why is it acting like that?
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[Tutor] [Fwd: Re: for loops over multiple lists of the same length]
Oops, forgot to reply to the list; sorry everyone.
--
Email: singingxduck AT gmail DOT com
AIM: singingxduck
Programming Python for the fun of it.
--- Begin Message ---
Emily Fortuna wrote:
Thanks, I knew there had to be a really simple way to do it.
Emily
Orri Ganel wrote:
Emily Fortuna wrote:
I feel like there should be a better way to do this process:
Can you please help?
(This is trivial example code I created off the top of my head, but
the same concept that I am trying to do elsewhere.)
class Person(object):
def __init__(self, first_name, age, fav_color):
self.first_name = first_name
self.age = age
self.fav_color = fav_color
first_names = ['emily', 'john', 'jeremy', 'juanita']
ages = [6, 34, 1, 19]
colors = ['blue', 'orange', 'green', 'yellow']
ageIter = ages.iter()
colorIter = colors.iter()
people = [Person(name, ageIter.next(), colorIter.next()) for name in
first_names]
print people
any suggestions, please?
Emily
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>>> people = [Person(first_names[i], ages[i], colors[i]) for i in
range(len(ages))]
Usually, you want to stay away from for i in range(len(foo)) because
it's easier to just use for elem in foo or for i, elem in
enumerate(foo), but since you need the indeces alone, this seems like
an appropriate place to use it. Alternatively, you could zip them
together:
>>> people = [Person(*zipped) for zipped in zip(first_names, ages,
colors)]
By zipping the lists together, you end up with a list of three-tuples:
>>> zip(first_names, ages, colors)
[('emily', 6, 'blue'), ('john', 34, 'orange'), ('jeremy', 1,
'green'), ('juanita', 19, 'yellow')]
And by putting an asterisk in front of zipped, you're passing each
element in the three-tuple one at a time instead of the whole shebang
at once, so that you end up with three arguments, not one.
HTH,
Orri
Actually, Kent had a very similar, and much more readable suggestion (if
you didn't see it, it's the following):
>>> people = [Person(first_name, age, color) for first_name, age, color
in zip(first_names, ages, colors)]
I guess it depends on how legible you feel your code needs to be; for
some, my suggestion would be more than enough.
--
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AIM: singingxduck
Programming Python for the fun of it.
--- End Message ---
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Re: [Tutor] How to make the loop work?
Ivan Low wrote:
>Bob Gailer wrote:
>
>
>>Ivan Low wrote:
>>
>>
>>>Hi, I'm new to python trying to figure how to make this work.
>>>
>>>c=0;d=raw_input("input number limit: ")
>>>
>>>while 1:
>>>c = c + 1
>>>if c == d: break
>>>print c,
>>>
>>>
>>>My idea is to able to input a number to limit the print out of this
>>>loop.
>>>But this will not work. Where is the error?
>>>
>>>
>>>
>>"Will not work" does not (in general) give us enough to go on. Please
>>in the future tell us what the evidence of the problem is - e.g.
>>unexpected output, exception, ... If it is an exception please include
>>the traceback in your post.
>>
>>
>>
>Hi, thanks for helping.
>After the reply from Peter by suggesting that I convert the raw_input to
>int, it works.
>Sorry that I didn't supply enough information in my post.
>However I'm curious about the result of my initial code after I enter a
>number which
>prompted by the raw_input it just keep printing numbers without break.
>Why is it acting like that?
>
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>
>
Well, since you didn't convert d to an integer, and a string can never
equal an integer, c never equals d, and therefore you get an infinite
loop, which continues to print c.
--
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[Tutor] Escape sequences
I have code that assigns escape sequences to variables like "self.resetString = '\03'". As long as they are hard coded in, everything works fine. But I want to read the variable from a text/config file so my users can override the defaults. In the file are a list of "parameter = value" pairs like "resetString = \03". As the file is parsed, each pair is stored in a dictionary; "parmeterDictionary[parameter] = value". Then in the code, the value is assigned to the variable with a statement like "self.resetString = parmeterDictionary['resetString']". Simple ASCII strings work fine, but the escape sequences don't work and the code fails. "print self.resetString" returns "\\03", instead of a nonprintable character. Any ideas? David Heiser ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Escape sequences
David Heiser wrote:
> I have code that assigns escape sequences to variables like
> "self.resetString = '\03'". As long as they are hard coded in,
> everything works fine.
>
> But I want to read the variable from a text/config file so my users can
> override the defaults. In the file are a list of "parameter = value"
> pairs like "resetString = \03". As the file is parsed, each pair is
> stored in a dictionary; "parmeterDictionary[parameter] = value".
>
> Then in the code, the value is assigned to the variable with a statement
> like "self.resetString = parmeterDictionary['resetString']".
>
> Simple ASCII strings work fine, but the escape sequences don't work and
> the code fails. "print self.resetString" returns "\\03", instead of a
> nonprintable character.
Use the 'string_escape' codec to decode the escaped strings:
In [1]: s= '\\03'
In [2]: s
Out[2]: '\\03'
In [3]: len(s)
Out[3]: 3
In [4]: s.decode('string_escape')
Out[4]: '\x03'
In [5]: len(_)
Out[5]: 1
Kent
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Re: [Tutor] for loops over multiple lists of the same length
+++ Emily Fortuna [22-06-06 13:22 -0400]: | I feel like there should be a better way to do this process: | Can you please help? | (This is trivial example code I created off the top of my head, but the | same concept that I am trying to do elsewhere.) | | class Person(object): | def __init__(self, first_name, age, fav_color): | self.first_name = first_name | self.age = age | self.fav_color = fav_color | | first_names = ['emily', 'john', 'jeremy', 'juanita'] | ages = [6, 34, 1, 19] | colors = ['blue', 'orange', 'green', 'yellow'] | | ageIter = ages.iter() | colorIter = colors.iter() | people = [Person(name, ageIter.next(), colorIter.next()) for name in | first_names] | | print people | | any suggestions, please? | Emily data = [['emily',6,'blue'],['jhon',34,'orange'],['jeremy',1,'green'],['junita',19,'yellow']] people = [Person(name,age,color) for name,age,color in data] Regards, Shantanoo -- Eliminate guilt. Don't fiddle expenses, taxes or benefits, and don't cheat colleagues. ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] How to make the loop work?
Ivan Low wrote:
> Bob Gailer wrote:
>
>> Ivan Low wrote:
>>
>>> Hi, I'm new to python trying to figure how to make this work.
>>>
>>> c=0;d=raw_input("input number limit: ")
>>>
>>> while 1:
>>> c = c + 1
>>> if c == d: break
>>> print c,
>>>
>>>
>>> My idea is to able to input a number to limit the print out of this
>>> loop.
>>> But this will not work. Where is the error?
>>>
>>>
>> "Will not work" does not (in general) give us enough to go on. Please
>> in the future tell us what the evidence of the problem is - e.g.
>> unexpected output, exception, ... If it is an exception please include
>> the traceback in your post.
>>
>>
> Hi, thanks for helping.
> After the reply from Peter by suggesting that I convert the raw_input to
> int, it works.
> Sorry that I didn't supply enough information in my post.
> However I'm curious about the result of my initial code after I enter a
> number which
> prompted by the raw_input it just keep printing numbers without break.
> Why is it acting like that?
>
Python will compare any two objects. If their types are not compatible
for comparison the result is False. Your program was comparing a
character string to a numeric. Their types are not "compatible". Hence
always False.
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>
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Re: [Tutor] Escape sequences
That worked just dandy. Thanks.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Kent Johnson
Sent: Thursday, June 22, 2006 1:03 PM
Cc: tutor@python.org
Subject: Re: [Tutor] Escape sequences
David Heiser wrote:
> I have code that assigns escape sequences to variables like
> "self.resetString = '\03'". As long as they are hard coded in,
> everything works fine.
>
> But I want to read the variable from a text/config file so my users
> can override the defaults. In the file are a list of "parameter =
> value" pairs like "resetString = \03". As the file is parsed, each
> pair is stored in a dictionary; "parmeterDictionary[parameter] =
> value".
>
> Then in the code, the value is assigned to the variable with a
> statement like "self.resetString = parmeterDictionary['resetString']".
>
> Simple ASCII strings work fine, but the escape sequences don't work
> and the code fails. "print self.resetString" returns "\\03", instead
> of a nonprintable character.
Use the 'string_escape' codec to decode the escaped strings:
In [1]: s= '\\03'
In [2]: s
Out[2]: '\\03'
In [3]: len(s)
Out[3]: 3
In [4]: s.decode('string_escape')
Out[4]: '\x03'
In [5]: len(_)
Out[5]: 1
Kent
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[Tutor] A few more notes on Python interfaces
Several weeks ago, there was a discussion on this list about the use of interfaces in Python. That motivated me to write up some notes on Python interfaces, in part to force myself to learn a bit more about it. Needless to say, my notes benefited much from the comments on this list. You can find these notes here: http://www.rexx.com/~dkuhlman/python_comments.html#interfaces I'll welcome any comments. And, thanks for the interesting and helpful discussion on interfaces, and other topics, on this list. Dave -- Dave Kuhlman http://www.rexx.com/~dkuhlman ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] Is this correct syntax for what I want?
I want to be able to add and subtract from a number in a tuple in a list. Is this the correct syntax? letterlist[x] = letterlist[x] + amount # for addition letterlist[x] = letterlist[x] - amount # for subtraction If this is not correct, what is the correct syntax? Thanks, Nathan Pinno ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] MySQLdb: cant get '... where field in %s' to work for string sequences
how can I get 'select ... from ... where field in %s' to work for
sequences of strings?
sequences of integers works just fine
import MySQLdb
DBCRED = {'host': 'localhost', 'user': 'userjustin',
'passwd': 'passwdjustin', 'db': 'dbjustin'}
ARTICLES = ('XXX9', 'ABZ2')
PIDS = (29379, 29380)
FIXEDARTICLENAME = """SELECT * FROM tblForTransfer2Prodsite
WHERE articleName IN ('XXX9', 'ABZ2')"""
TESTARTICLENAME = """SELECT * FROM tblForTransfer2Prodsite
WHERE articleName IN %r""" % (ARTICLES,)
SQLARTICLENAME = """SELECT * FROM tblForTransfer2Prodsite
WHERE articleName IN %s"""
FIXEDPID = """SELECT * FROM tblForTransfer2Prodsite
WHERE pid IN (29379, 29380)"""
TESTPID = """SELECT * FROM tblForTransfer2Prodsite
WHERE pid IN %r""" % (PIDS,)
SQLPID = """SELECT * FROM tblForTransfer2Prodsite
WHERE pid IN %s"""
if __name__ == '__main__':
conn = MySQLdb.connect(**DBCRED)
try:
cur = conn.cursor()
print FIXEDARTICLENAME
print TESTARTICLENAME
print cur.execute(FIXEDARTICLENAME),
print cur.execute(TESTARTICLENAME),
# cannot get this to work
print cur.execute(SQLARTICLENAME, (ARTICLES,))
print
print FIXEDPID
print TESTPID
print cur.execute(FIXEDPID),
print cur.execute(TESTPID),
# but this does
print cur.execute(SQLPID, (PIDS,))
print
finally: conn.close()
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[Tutor] [ANN] RUR-PLE version 0.9.9
Roberge's Used Robot: a Python Learning Environment Version 0.9.9 of RUR-PLE has been released. It can be found at: https://sourceforge.net/project/showfiles.php?group_id=125834 RUR-PLE should work properly on all major platforms (Mac, Linux and Windows) in 3 different languages (English, French, Spanish). Feedback would be appreciated to confirm this prior to release of version 1.0. -- Learning to program computer should be fun, for adults and children alike. RUR-PLE is an environment designed to help you learn computer programming using Python. RUR-PLE is a wxPython-based app. RUR-PLE contains four main elements: 1. Lessons viewable within an incorporated browser. Version 0.9.9 includes over 40 lessons introducing Python. A few more will be written for the 1.0 release. 2. A "robot world" with a robot that can accomplish tasks through Python programs. 3. A built-in interpreter which can be used to play with Python. 4. A built-in file editor which can be used for futher Python explorations. This version includes a triilingual (English, French and Spanish) interface. Translations to other languages are welcome. Only English lessons are included. André ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Is this correct syntax for what I want?
On Thu, 22 Jun 2006, Nathan Pinno wrote: > I want to be able to add and subtract from a number in a tuple in a > list. Is this the correct syntax? > > letterlist[x] = letterlist[x] + amount # for addition > > letterlist[x] = letterlist[x] - amount # for subtraction Try it. ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] what does the warning indicate?
Hi!! I'm new to python and just trying to play around, when I run my program in the interactive shell before executing the program it shows the following warning : Warning: HOME environment variable points to H: but the path does not exist. RESTART >>> or sometimes it just gets stuck. What does this mean? ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] what does the warning indicate?
Most probably you are using Python on Windows, on Unix-like system there is a "home" for each user where the user files reside, normally HOME on windows must point to something like c:\Documents and Settings\Username, are you using Python on Windows 98? Otherwise it may be a problem with the enviroment variable (Home), pointing to drive H (H:), while it dosen't exist in your system. Anyways, that's my 2 cents :) On 6/22/06, devayani barve <[EMAIL PROTECTED]> wrote: > > Hi!! > I'm new to python and just trying to play around, > when I run my program in the interactive shell before executing the program > it shows the following warning : > > Warning: HOME environment variable points to > H: > but the path does not exist. > RESTART > > >>> > > or sometimes it just gets stuck. > What does this mean? > > ___ > Tutor maillist - Tutor@python.org > http://mail.python.org/mailman/listinfo/tutor > > > ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
