AttributeError

Ltc Hotspot ltc.hotspot at gmail.com
Wed Aug 12 02:43:46 CEST 2015


The Assignment:



I'm trying to write Python code to read through a data file and figure out
the distribution by hour of the dat for each message in the data file.

Python can pull the hour from the 'From ' line by finding the time and then
splitting the string a second time using a colon, i.e., From
stephen.marquard at uct.ac.za Sat Jan  5 09:14:16 2008

Finally, accumulated the counts for each hour, print out the counts, sorted
by hour as shown below:

name = raw_input("Enter file:")
if len(name) < 1 : name = "mbox-short.txt"
handle = open(name)


Desired Output:


04 3
06 1
07 1
09 2
10 3
11 6
14 1
15 2
16 4
17 2
18 1
19 1



Raw data code, available at http://tinyurl.com/ob89r9p
Embedded data code, available at http://tinyurl.com/qhm4ppq
Visualization URL link, available at http://tinyurl.com/ozzmffy

Regards,
Hal

On Tue, Aug 11, 2015 at 5:26 PM, MRAB <python at mrabarnett.plus.com> wrote:

> On 2015-08-12 01:01, Ltc Hotspot wrote:
>
>> Hi Everyone,
>>
>>
>> What is the list equivalent to line 12: ncount.sort(reverse=True)
>>
>>
>> count = dict()
>> fname = raw_input("Enter file name: ")#
>> handle = open (fname, 'r')#
>> for line in handle:
>>      if line.startswith("From "):
>>          address = line.split()[5]
>>          line = line.rstrip()
>>          count[address] = count.get(address, 0) + 1
>>
>> for key,val in count.items():
>>      ncount = (key,val)
>>      ncount.sort(reverse=True)
>>      print key,val
>>
>>
>> Error message, reads: AttributeError, line 12, below : 'tuple' object has
>> no attribute 'sort'
>>
>> Raw data code, available at http://tinyurl.com/ob89r9p
>> Embedded data code, available at http://tinyurl.com/qhm4ppq
>> Visualization URL link, available at http://tinyurl.com/ozzmffy
>>
>> What are you trying to do? Why are you trying to sort a key/value pair in
> reverse order?
>
> --
> https://mail.python.org/mailman/listinfo/python-list
>
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