On 17/07/13 11:48, Jim Mooney wrote:
This is puzzling me. I have a folder with about 125 movie sound clips,
like "I'll be back," blues brothers theme, oompa-loompas, etc. I play
seven random ones on windows startup, which works fine. But just so I
don't repeat a clip, I delete it from the dictionary on each go-round.
However, to make sure that happened, I printed the key-length on each
go-round. It should be shorter by one every time but I always get a
length of 125. (Yes, I know there are about five different ways to do
this, but I thought I'd try a dictionary ;')
That's because your loop recreates the dictionary at the start of each loop. I
bet you have 126 WAV files in the directory. You play one, delete it from the
dict, print the number of keys (which will be 126-1 = 125), and then start the
loop again, which recreates the dict good as new.
Also, the printout doesn't occur until after all the sounds play, so
maybe that has something to do with it. But I also tried saving the
lengths in a list while the program ran, and got the same result. A
list of all '125'
That's very strange. print is not supposed to be buffered, it should always
print immediately. I have no ideas about that.
#Using Python 2.7 on Win 7
import winsound
import random, os
random.seed()
lenlist = []
file_list = os.listdir('WAV')
for clip in range(0,7):
file_dict = dict(enumerate(file_list))
sound_key = random.choice(range(0,len(file_list)))
Here's a better way to do it, which guarantees that there will be no duplicates
(unless you have duplicate files):
file_list = os.listdir('WAV')
random.shuffle(file_list)
for name in file_list[:7]:
winsound.PlaySound('WAV/' + name, winsound.SND_FILENAME)
--
Steven
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