reading data from an ASCII file ?

Coding Python Support
1

i have these lines here


 
for line in fo.readlines():
 
 linedata.append(line)
 vals = linedata[kk].split(',')
 print (' val 0=',vals[0])
 
 <b>if vals[0]='CD':</b>
  print (' breakers   ^^^^^^^^^^')
  cntCB1+=1

i get an error on the if line to detect some words
i tried many ways but does not want to work!

how can this work?

thanks
happy 2.5

2

if vals[0] == ‘CD’:

comparison, not assignment.

3

it still does not see the word in this field!

is there some nul values added and should i remove the null values before and after the word may be
and how ?

thanks

4

what is KK ? what is the content of linedata[kk]

5

kk is a line counter in a for loop for the file

here is the print out for this

the value i’m tring to get is this CD which is the first field on a line = val[0]

from console output

val 0= CD
strip command CD vals= CD
b= CD
kk= 10 len= 2
val[0]= CD
############### kk= 10 CB qty = 0

for this field i cannot see it with the if command !

&&&&&&&&&&&&&&&&&

here is the code for the loop


 
 
for line in fo.readlines():
 
 
 linedata.append(line)
 vals = linedata[kk].split(',')
 print (' val 0=',vals[0])
 
 print (' strip command ' , vals[0].strip(),' vals=',vals[0])
 b1=vals[0].rstrip()
 print ('b=',b1)
 print ('kk=',kk,'len=',len(vals))
 print (' val[0]=',vals[0])
<b>if vals[0]=="CD":</b>
  print (' $$$$$$$$$$$$$$$$$$$$$$$  breakers   ^^^^^^^^^^')
  cntCB1+=1
 
 print ('###############   kk=',kk, 'CB qty =',cntCB1)
 
 if kk&gt;12:
  break
 
 print ()
 
 
 kk+=1

very strange i tried to remove null values before and after and it does not work

tried with single quote or double quote and same thing

thanks

6

correct your indentation. your if statement vals[0] is outside the fo.readlines(): for loop.

7

no not that i use Tab and eveything is aligned as it should be or i would get indentation error !!

tried this one


 
 val 0= CD1
 strip command  CD1  vals= CD1
b= CD1
kk= 10 len= 2
 val[0]= CD1
 different then CD1
###############   kk= 10 CB qty = 0

and get this on console

val 0= CD1
strip command CD1 vals= CD1
b= CD1
kk= 10 len= 2
val[0]= CD1
different then CD1
############### kk= 10 CB qty = 0

so i can print the value CD1 it has a lenght of 2 upper case

but the if equal does not recognise it !

don’t know what is doing this to miss this value

i’ll wait tomorrow may be i’'ll find it tomorrow morning!

but the if command does see a difference but which one !

thanks
happy 2.5

8

found it there was nulls values on this field

now it works with this

b1=vals[0].rstrip()
print (‘b1=’,b1)
print (‘kk=’,kk,‘len=’,len(vals[0]))
print(‘len b1=’,len(b1))
print (’ val[0]=’,vals[0])

if b1==“CD1”:
print (’ ***************************** breakers ^^^^^^^^^^’)
cntCB1+=1

which is cool!

thanks anyway

9

show me the file you want to parse.