I need help with graphs in python (2.7.3.1)

[hevymetl07]

Hi there, I hope that there is someone willing to help me out, I need to generate a graph in Python 2.7.3.1, but I am not that skilled with Python and I am completely stuck

I had to make a .CSV file from my Windows system logs (already did that), and the following steps must bw written in the form of a Python 2.7.3.1 script.

These are some steps I need to do first before creating the graph:
- Get the name of a CSV file from an ini file,
- Next, read a line from this CSV file,
- Increase a variable depending on the Log level (information, warning, error, critical),
- Read the next line,
- Then I need to print these results in a Graph.

I really hope that there is someone there to help me out, and many thanks in advance for all your help!

 

[Thomas Bach]

Hi,

Most of the tasks you have to do can be achieved quite easily with the
standard library (except the plotting).

These are some steps I need to do first before creating the graph:
- Get the name of a CSV file from an ini file,

Have a look at the ConfigParser module[1],

- Next, read a line from this CSV file,

well, the csv module[2] apparently is a good choice for that,

- Increase a variable depending on the Log level (information,
- warning, error, critical),

you maybe want to use collections.counter for that[3]. Anyways, I
think matplotlib can handle the counting for you…

- Read the next line,

this is just iteration over the csv instance you created with your file

- Then I need to print these results in a Graph.

I use matplotlib for this purpose, have a look at their gallery[4] to
decide what kind of plot best fits your needs.


I'd recommend to install ipython and start playing around with the
modules I just told you. If you are stuck somewhere read the
documentation properly (it's actually all in there) and come back
again if you cannot come up with a solution.


Hope this helps,
Thomas Bach.

Footnotes:
[1] http://docs.python.org/2/library/configparser.html

[2] http://docs.python.org/2/library/csv.html

[3] http://docs.python.org/2/library/collections.html#collections.Counter

[4] http://matplotlib.org/gallery.html

 

[Terry Reedy]

Hi there, I hope that there is someone willing to help me out, I need
to generate a graph in Python 2.7.3.1,

There is only 2.7.3, no 2.7.3.1, at least not officially.

I had to make a .CSV file from my Windows system logs (already did
that), and the following steps must bw written in the form of a
Python 2.7.3.1 script.

These are some steps I need to do first before creating the graph: -
Get the name of a CSV file from an ini file, - Next, read a line from
this CSV file, - Increase a variable depending on the Log level
(information, warning, error, critical), - Read the next line, - Then
I need to print these results in a Graph.

It sounds like your data consist of 4 counts. If so, you can easily make
a simple bar plot with characters

Log level Number Plot (x = 10)
---------- ------ -----------------------------------------------------
infomation 386 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
warning 97 xxxxxxxxxx
error 5 x
critical 23 xxx

The main problem is to compute the scaling factor from the data.
You also have to decide on the rounding (I rounded up).

 

[Dennis Lee Bieber]

Hi,

Most of the tasks you have to do can be achieved quite easily with the
standard library (except the plotting).

Since it sounds like the output is going to be a bar-chart, even
that could be done with the standard library... Based on the counts,
set the highest count to map to, say 60 (characters), scale the other
counts proportionately, then generate a display of (use fixed pitch)

info | ********************
warn | *****************************************
error | *******
crit | **************