Re: Howw to prevent the duplication of any value in a column within a CSV file (python)
potential_passengers = ['bob','john','sue','wendy','chris','bob','jen','wendy']
accepted_passengers = set()
for name in potential_passengers:
print('checking on {}...'.format(name))
if name not in accepted_passengers:
accepted_passengers.add(name)
print('welcome aboard, {}!'.format(name))
else:
print('i am sorry, we have already accepted a {}.'.format(name))
print()
HTH,
Don
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Re: How may I learn Python Web Frameworks
you'll find a very extensive Flask tutorial at http://blog.miguelgrinberg.com/post/the-flask-mega-tutorial-part-i-hello-world . -- https://mail.python.org/mailman/listinfo/python-list
Re: Looking for direction
I recommend getting your hands on Automate The Boring Stuff With Python from no starch press: http://www.nostarch.com/automatestuff I've not read it in its entirety, but it's very beginner-friendly and is targeted at just the sort of processing you appear to be doing. HTH, Don -- https://mail.python.org/mailman/listinfo/python-list
Re: Running Python programmes
Maybe you're inadvertently running Python with either the '-i' switch or with the PYTHONINSPECT environment variable set? When you do that, your script will launch an interactive prompt after it completes. C:\Python27echo print hello hello.py C:\Python27python hello.py hello C:\Python27python -i hello.py hello ^Z C:\Python27set PYTHONINSPECT=1 C:\Python27python hello.py hello ^Z -- https://mail.python.org/mailman/listinfo/python-list
Re: a couple of things I don't understand wrt lists
On Apr 17, 5:25 am, aaB mecagonoisic...@gmail.com wrote: - the complement thing: I haven't yet tried to reproduce this, but I will, and I will post back if I see this happening again, this time with a real log of python's interactive console, or a complete script which people can use. That was happening when you incorrectly used bit as an index back into bitpattern. When you do that, the behavior actually changes depending on the value of bitpattern: a bitpattern that starts with [1, 0, ...] will yield its complement: bitpattern = [1, 0, 0, 1, 1, 0, 1] for bit in bitpattern: print 'bitpattern[%s] : %s' % (bit, bitpattern[bit]) bitpattern[1] : 0 bitpattern[0] : 1 bitpattern[0] : 1 bitpattern[1] : 0 bitpattern[1] : 0 bitpattern[0] : 1 bitpattern[1] : 0 while a bitpattern that starts with [0, 1, ...] will yield the expected results: bitpattern = [0, 1, 0, 1, 1, 0, 1] for bit in bitpattern: print 'bitpattern[%s] : %s' % (bit, bitpattern[bit]) bitpattern[0] : 0 bitpattern[1] : 1 bitpattern[0] : 0 bitpattern[1] : 1 bitpattern[1] : 1 bitpattern[0] : 0 bitpattern[1] : 1 HTH, Don -- http://mail.python.org/mailman/listinfo/python-list
Re: Parsing soap result
On Apr 17, 8:50 am, Ombongi Moraa Fe moraa.lovetak...@gmail.com
wrote:
how do I use xml.etree.ElementTree to print the parameters address and
deliveryStatus? Or is there a better python method?
I'm sure there are prettier ways to do this, but you can use XPath
syntax to find all of your ns1:result nodes and loop through them:
import xml.etree.ElementTree as ET
myXML = '''\
?xml version=1.0 encoding=utf-8 ?
soapenv:Envelope xmlns:soapenv=http://schemas.xmlsoap.org/soap/
envelope/ xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance;
soapenv:Body
ns1:gere xmlns:ns1=http://www.csapi.org/schema/parlayx/sms/send/v2_2/
local
ns1:result
address254727/address
deliveryStatusDeliveredToNetwork/deliveryStatus
/ns1:result
/ns1:gere
/soapenv:Body
/soapenv:Envelope
'''
myNamespaces=dict(ns1=http://www.csapi.org/schema/parlayx/sms/send/v2_2/local,soapenv=http://schemas.xmlsoap.org/soap/envelope/;)
root = ET.fromstring(myXML)
for result in root.findall('.//ns1:result',namespaces=myNamespaces):
address = result.find('address').text
deliveryStatus = result.find('deliveryStatus').text
print address: %s, deliveryStatus: %s % (address,deliveryStatus)
address: 254727, deliveryStatus: DeliveredToNetwork
HTH,
Don
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Re: Parsing soap result
On Apr 17, 1:05 pm, Christian Heimes christ...@python.org wrote:
Am 17.04.2013 19:55, schrieb darnold:
On Apr 17, 8:50 am, Ombongi Moraa Fe moraa.lovetak...@gmail.com
wrote:
how do I use xml.etree.ElementTree to print the parameters address and
deliveryStatus? Or is there a better python method?
I'm sure there are prettier ways to do this, but you can use XPath
syntax to find all of your ns1:result nodes and loop through them:
You want all {http://www.csapi.org/schema/parlayx/sms/send/v2_2/
local}result tags. The prefix isn't fixed.
I'm sorry, but I'm not understanding the difference.
By specifying:
myNamespaces=dict(ns1=http://www.csapi.org/schema/parlayx/sms/send/v2_2/local;)
Isn't this:
for result in root.findall('.//ns1:result',namespaces=myNamespaces):
equivalent to:
for result in
root.findall('.//{http://www.csapi.org/schema/parlayx/sms/send/v2_2/local}result'):
?
Or am I misunderstanding? Is there a namespace-agnostic way of doing
this?
Admittedly, I haven't used ElementTree or XPath much prior to toying
with them to (attempt to) answer the OP's question.
Thanks for your patience,
Don
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Re: Python log parser
i know literally nothing about syslogs, but a google search for python syslog parser shows that some people have had success using the pyparsing module: http://www.j-schmitz.net/blog/how-to-parse-a-syslog-logfile-in-python https://gist.github.com/leandrosilva/3651640 hth, Don -- http://mail.python.org/mailman/listinfo/python-list
Re: Issue with my code
On Feb 5, 2:19 pm, maiden129 sengokubasarafe...@gmail.com wrote: How to reverse the two loops? s=input(Enter a string, eg(4856w23874): ) checkS=['0','1','2','3','4','5','6','7','8','9'] for digit in checkS: t = s.count(digit) if t == 0: pass elif t == 1: print(digit,occurs 1 time.) else: print(digit, occurs, t,times.) Enter a string, eg(4856w23874): 23493049weee2039412367 0 occurs 2 times. 1 occurs 1 time. 2 occurs 3 times. 3 occurs 4 times. 4 occurs 3 times. 6 occurs 1 time. 7 occurs 1 time. 9 occurs 3 times. HTH, Don -- http://mail.python.org/mailman/listinfo/python-list
Re: Issue with my code
On Feb 5, 4:05 pm, marduk mar...@python.net wrote: Although that implementation also scans the string 10 times (s.count()), which may not be as efficient (although it is happening in C, so perhaps not). A better solution involves only scanning the string once. agreed. i was specifically showing how to reverse the loop. using the much-better-suited Counter class: from collections import Counter s=input(Enter a string, eg(4856w23874): ) checkS=['0','1','2','3','4','5','6','7','8','9'] cnt = Counter() for char in s: cnt[char] += 1 for char, tally in sorted(cnt.items()): if char in checkS and tally 0: if tally == 1: print(char,occurs 1 time.) else: print(char, occurs, tally,times.) Enter a string, eg(4856w23874): 192398209asdfbc12903348955 0 occurs 2 times. 1 occurs 2 times. 2 occurs 3 times. 3 occurs 3 times. 4 occurs 1 time. 5 occurs 2 times. 8 occurs 2 times. 9 occurs 5 times. HTH, Don -- http://mail.python.org/mailman/listinfo/python-list
Re: Searching through two logfiles in parallel?
i don't think in iterators (yet), so this is a bit wordy.
same basic idea, though: for each message (set of parameters), build a
list of transactions consisting of matching send/receive times.
mildly tested:
from datetime import datetime, timedelta
sendData = '''\
05:00:06 Message sent - Value A: 5.6, Value B: 6.2, Value C: 9.9
05:00:08 Message sent - Value A: 3.3, Value B: 4.3, Value C: 2.3
05:00:10 Message sent - Value A: 3.0, Value B: 0.4, Value C: 5.4
#orphan
05:00:14 Message sent - Value A: 1.0, Value B: 0.4, Value C: 5.4
07:00:14 Message sent - Value A: 1.0, Value B: 0.4, Value C: 5.4
'''
receiveData = '''\
05:00:09 Message received - Value A: 5.6, Value B: 6.2, Value C:
9.9
05:00:12 Message received - Value A: 3.3, Value B: 4.3, Value C:
2.3
05:00:15 Message received - Value A: 1.0, Value B: 0.4, Value C:
5.4
07:00:18 Message received - Value A: 1.0, Value B: 0.4, Value C:
5.4
07:00:30 Message received - Value A: 1.0, Value B: 0.4, Value C:
5.4 #orphan
07:00:30 Message received - Value A: 17.0, Value B: 0.4, Value C:
5.4 #orphan
'''
def parse(line):
timestamp, rest = line.split(' Message ')
action, params = rest.split(' - ' )
params = params.split('#')[0]
return timestamp.strip(), params.strip()
def isMatch(sendTime,receiveTime,maxDelta):
if sendTime is None:
return False
sendDT = datetime.strptime(sendTime,'%H:%M:%S')
receiveDT = datetime.strptime(receiveTime,'%H:%M:%S')
return receiveDT - sendDT = maxDelta
results = {}
for line in sendData.split('\n'):
if not line.strip():
continue
timestamp, params = parse(line)
if params not in results:
results[params] = [{'sendTime': timestamp, 'receiveTime':
None}]
else:
results[params].append({'sendTime': timestamp, 'receiveTime':
None})
for line in receiveData.split('\n'):
if not line.strip():
continue
timestamp, params = parse(line)
if params not in results:
results[params] = [{'sendTime': None, 'receiveTime':
timestamp}]
else:
for tranNum, transaction in enumerate(results[params]):
if
isMatch(transaction['sendTime'],timestamp,timedelta(seconds=5)):
results[params][tranNum]['receiveTime'] = timestamp
break
else:
results[params].append({'sendTime': None, 'receiveTime':
timestamp})
for params in sorted(results):
print params
for transaction in results[params]:
print '\t%s' % transaction
RESTART
Value A: 1.0, Value B: 0.4, Value C: 5.4
{'sendTime': '05:00:14', 'receiveTime': '05:00:15'}
{'sendTime': '07:00:14', 'receiveTime': '07:00:18'}
{'sendTime': None, 'receiveTime': '07:00:30'}
Value A: 17.0, Value B: 0.4, Value C: 5.4
{'sendTime': None, 'receiveTime': '07:00:30'}
Value A: 3.0, Value B: 0.4, Value C: 5.4
{'sendTime': '05:00:10', 'receiveTime': None}
Value A: 3.3, Value B: 4.3, Value C: 2.3
{'sendTime': '05:00:08', 'receiveTime': '05:00:12'}
Value A: 5.6, Value B: 6.2, Value C: 9.9
{'sendTime': '05:00:06', 'receiveTime': '05:00:09'}
HTH,
Don
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Re: Trying to make a basic Python score counter in a game... will not count.
On Dec 16, 12:38 pm, tbg darrienglas...@gmail.com wrote: Nice, will have to try it out... if you're interested in learning Python and/or game programming in Python, you might want to take a look at http://inventwithpython.com/ . HTH, Don -- http://mail.python.org/mailman/listinfo/python-list
Re: SQLAlchemy: How to do Table Reflection and MySQL?
On Oct 20, 6:24 pm, Nick Sabalausky seewebsitetocontac...@semitwist.com wrote: Hi, I'm fairly new to Python, and I'm trying to figure out how to use SQLAlchemy to connect to a MySQL DB and use table reflection to set up SQLAlchemy's tables. But the SQLAlchemy documentation is gigantic and frankly kinda making my head spin, so I'm having trouble even finding any information on how to use its table reflection, mostly just that it exists and *can* be done, but not so much how. My web searching has just been turning up examples of SQLite and manually describing the tables in Python and having SQLAlchemy create the tables, which isn't what I'm looking for. Is there a simple way to do this somehow? To just connect to a MySQL DB and use table reflection? i'm not brave enough to dig too deeply into SQLAlchemy, but maybe this will help? : http://kashififtikhar.blogspot.com/2010/07/using-sqlalchemy-reflection-with-pylons.html that came up from googling sqlalchemy table reflection tutorial. -- http://mail.python.org/mailman/listinfo/python-list
Re: which book?
On May 10, 4:58 am, d.po...@gmail.com wrote: On Wednesday, May 9, 2012 7:13:54 AM UTC-7, Miki Tebeka wrote: I am going to learn python for some plot issues. which book or sources, do you recommend please? The tutorial is pretty good if you already know how to program. I also heard a lot of good things on Python Essential Reference. Thanks. Could you please pass the line for tutorial? i believe that would be the tutorial at http://docs.python.org/tutorial/ . -- http://mail.python.org/mailman/listinfo/python-list
Re: test for list equality
On Dec 15, 11:59 am, Miki Tebeka miki.teb...@gmail.com wrote: My sort issue... as in this doesn't work if x.sort == y.sort: You're missing the () to make it a function call. Also list.sort() returns none, it mutates the original list. You can either sorted(x) == sorted(y) or set(x) == set(y) I'm pretty sure we don't want to use set() since it throws away duplicates: x = [1,2,3,4] y = [1,1,2,2,3,3,4] sorted(x) == sorted(y) False set(x) == set(y) True -- http://mail.python.org/mailman/listinfo/python-list
Re: Methods on file-like objects can only used once on one object?
On Aug 23, 9:21 am, Yingjie Lin yingjie@mssm.edu wrote:
Hi Python users,
I just realize that my post yesterday shouldn't be specifically for
mechanize. It should be a general question for file-like objects.
f = open('my_file.txt')
print f.readlines()
( prints a list of strings print f.readlines()
[]
There are quite a few methods for file-like objects that can only be used
once on one object. If I prefer to use some of these methods on one object,
one after another, like:
f.readlines()
f.read()
...
What should I do? Thank you.
- Yingjie
Each of those calls consumes the entire file, leaving the file pointer
at end-of-file. to reset the file pointer back to the beginning of the
file and enable re-reading, use f.seek(0) .
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Re: split long string in two code lines
print this \ is \ a \ test \ RESTART this is a test -- http://mail.python.org/mailman/listinfo/python-list
