🌐 Mailman 3 July 2000 - Tutor - python.org

Windons Task tray
by rhicks＠rma.edu July 4, 2001

July 4, 2001

Is it possible to minimize a python program to the task tray area of the taskbar in Windows95/98? Bob pop3.rma.edu

3 2

Why doesn't this work??
by Carl Kreider July 31, 2000

July 31, 2000

Could some kind soul help an old C programmer and explain what is wrong with this code? ---------8<----------- #!/bin/env python T = 0 dt = 0.1 def time_to_print(interval): num = T / dt den = interval / dt ttp = num % den print "ttp: T=%f num=%f den=%f ttp=%f" % (T, num, den, ttp) return abs(ttp) < dt while (T < 6.0): if time_to_print(1): print "%f" % T T = T + dt ---------8<----------- The output I get using: Python 1.5.2 (#1, Jul 17 1999, 22:10:16) [GCC egcs-2.91.66 19990314/Linux (egcs- on linux2 Copyright 1991-1995 Stichting Mathematisch Centrum, Amsterdam >>> is: ---------8<----------- carlk$ python ttp.py ttp: T=0.000000 num=0.000000 den=10.000000 ttp=0.000000 0.000000 ttp: T=0.100000 num=1.000000 den=10.000000 ttp=1.000000 (snip) ttp: T=0.900000 num=9.000000 den=10.000000 ttp=9.000000 ttp: T=1.000000 num=10.000000 den=10.000000 ttp=10.000000 ttp: T=1.100000 num=11.000000 den=10.000000 ttp=1.000000 (snip) ttp: T=2.000000 num=20.000000 den=10.000000 ttp=0.000000 2.000000 ttp: T=2.100000 num=21.000000 den=10.000000 ttp=1.000000 (snip) ttp: T=3.000000 num=30.000000 den=10.000000 ttp=0.000000 3.000000 ttp: T=3.100000 num=31.000000 den=10.000000 ttp=1.000000 (snip) ttp: T=4.000000 num=40.000000 den=10.000000 ttp=0.000000 4.000000 ttp: T=4.100000 num=41.000000 den=10.000000 ttp=1.000000 (snip) ttp: T=4.900000 num=49.000000 den=10.000000 ttp=9.000000 ttp: T=5.000000 num=50.000000 den=10.000000 ttp=10.000000 ttp: T=5.100000 num=51.000000 den=10.000000 ttp=1.000000 (snip) ttp: T=5.900000 num=59.000000 den=10.000000 ttp=9.000000 ttp: T=6.000000 num=60.000000 den=10.000000 ttp=10.000000 ---------8<----------- I agree that 0, 20, 30, and 40 mod 10 yield 0, but since when does 10, 50, or 60 mod 10 yield 10? Do I misremember how mod works? -- Carl Kreider aka [carlk|root](a)syscon-intl.com (219) 232-3900 Ext 207 ckreider(a)gte.net ckreider(a)acm.org ckreider(a)alumni.indiana.edu Do, or do not. There is no try. - Yoda, The Empire Strikes Back

3 3

Loading and writing files
by Daniel D. Laskey, CPA July 31, 2000

July 31, 2000

#-----------Objective--------------------------------------- # # 1. Open a file that is comma deiminated called test.csv # and then print the file to the screen. # 33.04,123196,12,421020,RVN# 179-Ernest Lonard,12528.7 # 33.04,123196,12,421020,RVN# 196-Hector Gale,2599.7 # 33.04,123196,12,421230,RVN# 249-Richard George,2300 # 33.04,123196,12,420000,Total Sales Journal,-17428.4 # # 2. Write the file to a file called junk2.txt and be able # to "cat" or "type" the file after the program terminates. # # 3. Read the data in the 5th position of the file and put " "s # around the data, so that the ending file lools like this: # 33.04,123196,12,421020,"RVN# 179-Ernest Lonard",12528.7 # 33.04,123196,12,421020,"RVN# 196-Hector Gale",2599.7 # 33.04,123196,12,421230,"RVN# 249-Richard George",2300 # 33.04,123196,12,420000,"Total Sales Journal",-17428.4 # #-----------My Code---------------------------------------------- import string import sys print "Enter the name of the .CSV file to convert:" in_file = raw_input(".CSV file name? ") in_file = open(x,"r") text = in_file.read() print text out_file = open("junk2.txt","w") for line in in_file.readlines(): out_file.write() out_file.close() in_file.close() #-------------End of Code-------------------------------------------- # # Thanks in advance for your help. # Dan #-------------------------------------------------------------------- # Daniel D. Laskey, CPA--------------------dlaskey(a)laskeycpa.com # Daniel D. Laskey Company, P.C.-----231-723-8305 / Fax 231-723-6097 # Certified Public Accountants # 507 Water Street # Manistee, MI 49660 #--------------------------------------------------------------------

4 4

binding a callback to an event on a Canvas Oval
by Catriona Johnston July 31, 2000

July 31, 2000

Help! I have written an application which draws a simple 2D graph drawn on a canvas widget by create_line and create_oval...the ovals are the points of the graph. I need to associate a callback to an event of a double click of the mouse button when over any of the points on the graph. How do I use the .bind() method on the oval widget extensions of the canvas class? Thanks KT

2 1

join
by JHo8＠aol.com July 30, 2000

July 30, 2000

1 0

please stop this
by Ahmad Ali July 29, 2000

July 29, 2000

Hi, Please stop sending python emails to me as there is no more need of that. thanks saunique(a)yahoo.com __________________________________________________ Do You Yahoo!? Kick off your party with Yahoo! Invites. http://invites.yahoo.com/

2 1

Creating easy-to-run files
by F Wass July 28, 2000

July 28, 2000

Hi, I've just started using Python (and found it quite useful) for writing a conversion parser between two different formats. Is there an easy way of letting the user run the script by simply typing "start" or something similar at the Python prompt? I'm currently using Windows, but it's intended to be run under Linux. Cheers, Fred

4 3

File permissions
by Jacob Williams July 28, 2000

July 28, 2000

With python, can you create a folder with a write only permission? thanks in advance! ------------------------ | Jacob Williams | | Da_woym(a)hotmail.com | ------------------------ ________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com

2 1

executing a program and retrieving it's output
by Ben Beuchler July 28, 2000

July 28, 2000

I'm familiar with using os.popen('command') to execute a command and retrieve it's output. However, I rather dreadfully miss being able to do this in Perl: $myvariable = `/path/to/my/program` Is there an easy equivalent in Python? Thanks, Ben -- Ben Beuchler insyte(a)bitstream.net MAILER-DAEMON (612) 321-9290 x101 Bitstream Underground www.bitstream.net

2 1

RE: Professional statistics for your homepage
by postbox＠counter4all.com July 28, 2000

July 28, 2000

Hi tutor(a)python.org Check http://www.counter4all.com/omcounter.asp

1 0