Newbie question: casting problem

[guncrew]

Hello I am starting to use Python.
I found a nice little example for subsituting and splitting texts and counting words separated by defined expressions (in the example , and blanks). Unfotunately there is an error in this example regarding the casting of strings: (see the code below):


#zerleg.py
import re
try:
fh=open('input. txt','r')
summe=0
n=0
while 1:
Zeile = fh.readline()
if Zeile =='':break
mZeile = re.sub('[ ,\r\n]{1,}$','',Zeile )
Wert = re.split('[ ,]{1,}',mZeile)
for i in range(len(Wert) ):
print'Wert:', Wert[i], '\n', len(Wert)
summe = summe + float(Wert[i])
n=n+len(Wert)
print"Summe: ", summe, \
'\nEingabedaten : ', n, \
'\nMittelwert : ', summe/n, '\n'
fh.close
except IOError, (errno, strerror):
print'Datei input.txt nicht lesbar. \n', \
'Fehlernummer:' , errno, '\n', \
'Fehlermeldung: ', strerror

Using the example above I am getting the following error message:

--> invalid literal for float(): ... fisrt word in file input.txt

The content of my input.txt is:
ba,nd001
hugo HiHo,002
alter ego 009
ha, what 006
003
END !? NO 010

Any idea how this casting problem could be solved?


Bye Guncrew

[jlm699]

        summe = summe + float(Wert[i])

You cannot float cast any characters. .. are you trying to count the number of words? If so, just simply use:

summe += 1