running a python script with tcl

[ironmonkey69]

I am trying to run a script though a tcl ware command and cannot get it to run. I used to eclipse to write the script and was able to run it through eclipse.

[bartonc]

I am trying to run a script though a tcl ware command and cannot get it to run. I used to eclipse to write the script and was able to run it through eclipse.

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[ironmonkey69]

actually I figured out the problem. I am running python 2.5 when the code that I am writing is for a machine that uses python 2.0. Can you help me do the same with this code in python 2.0?

...
def nthzero(dataList, nth, n):
    '''
    Replace the nth element of each list in the data list with 'n'
    '''
    for item in dataList:
        item[nth] = n
    return dataList
 

fn = 'outfile.db'
f = open(fn)
 
s = f.next()
prefix = s
while s.strip() != '#Data':
    s = f.next()
    prefix += s
    
lineList = [line.strip().split() for line in f]
 
f.close()
elem = 1
repl = '0'
lineList = nthzero(lineList, elem, repl)

fn1 = 'outfile.db'
f = open(fn1, 'w')
outList = []
for line in lineList:
    outList.append(' '.join(line))
    
f.write('%s%s' % (prefix, '\n'.join(outList)))
f.close()
...

[ironmonkey69]

this code takes a text file with numbers that are separated by columns and zeroes out a colum. this is what the text file looks like:

#Number of Bits
12
#Data
0 0 0 0 0 0 0 0 0 0 0 0
12 5 3 4 6 4 5 4 7 5 5 10
24 9 7 7 13 7 9 9 14 10 10 20

and this is what it does:

#Number of Bits
12
#Data
0 0 0 0 0 0 0 0 0 0 0 0
12 0 3 4 6 4 5 4 7 5 5 10
24 0 7 7 13 7 9 9 14 10 10 20

in the python code the 'elem=' statement is what chooses the column

[bvdet]

actually I figured out the problem. I am running python 2.5 when the code that I am writing is for a machine that uses python 2.0. Can you help me do the same with this code in python 2.0?

...
def nthzero(dataList, nth, n):
    '''
    Replace the nth element of each list in the data list with 'n'
    '''
    for item in dataList:
        item[nth] = n
    return dataList
 

fn = 'outfile.db'
f = open(fn)
 
s = f.next()
prefix = s
while s.strip() != '#Data':
    s = f.next()
    prefix += s
    
lineList = [line.strip().split() for line in f]
 
f.close()
elem = 1
repl = '0'
lineList = nthzero(lineList, elem, repl)

fn1 = 'outfile.db'
f = open(fn1, 'w')
outList = []
for line in lineList:
    outList.append(' '.join(line))
    
f.write('%s%s' % (prefix, '\n'.join(outList)))
f.close()
...

Initially I thought the list comprehension or string methods may fail in Python 2.0, but I believe both were added in 2.0. Can you post the error message?

[ironmonkey69]

I'm calling the file 'monkey2.py. This is the error I have been getting:

File "monkey2.py ", line 11, in ?
f = open(fn)
IOError: [Errno 2] No such file or directory: 'outfile.txt's = f.KEY_NEXT
AttributeError: 'file' object has no attribute 'KEY_NEXT'

This is the code I have been playing with:

...
def nthzero(dataList, nth, n):
    '''
    Replace the nth element of each list in the data list with 'n'
    '''
    for item in dataList:
        item[nth] = n
    return dataList
 

fn = 'outfile.txt'
f = open(fn)
 
s = f.next()
prefix = s
while s.strip() != '#Data':
    s = f.next()
    prefix += s
    
lineList = [line.strip().split() for line in f]
 
f.close()
elem = 1
repl = '0'
lineList = nthzero(lineList, elem, repl)

fn1 = 'outfile.txt'
f = open(fn1, 'w')
outList = []
for line in lineList:
    outList.append(' '.join(line))
    
f.write('%s%s' % (prefix, '\n'.join(outList)))
f.close()
...

I was playing with the file with a .db extension since I can't use the 'next()' in 2.0

[ironmonkey69]

actually that's the wrong error. I was getting attributrerror: next()

[ironmonkey69]

Here is the error

Traceback (most recent call last):
File "monkey.py" , line 13, in ?
s = f.next()
AttributeError: next

[bvdet]

actually that's the wrong error. I was getting attributrerror: next()

I just checked. The file.next() method was added in 2.3. Try replacing that section of code with:[code=Python]s = f.readline()
prefix = s
while s.strip() != '#Data':
s = f.readline()
prefix += s[/code]

[ironmonkey69]

now I am getting an error:
File "monkey.py" , line 19, in ?
lineList = [line.strip().sp lit() for line in f]
TypeError: loop over non-sequence

[bvdet]

now I am getting an error:
File "monkey.py" , line 19, in ?
lineList = [line.strip().sp lit() for line in f]
TypeError: loop over non-sequence

Let's get rid of the comp:[code=Python]lineList = []
for line in f:
lineList.append (line.strip().s plit())[/code]

[ironmonkey69]

Now I am getting this error:

Traceback (most recent call last):
File "monkey.py" , line 20, in ?
for line in f:
TypeError: loop over non-sequence

[bvdet]

Now I am getting this error:

Traceback (most recent call last):
File "monkey.py" , line 20, in ?
for line in f:
TypeError: loop over non-sequence

??[code=Python]lineList = [line.strip().sp lit() for line in f.readlines()][/code]Do you understand what is taking place here? Since there was no next() method in Python 2.0, this was the way to iterate on a file (I am concluding this by deduction).

[ironmonkey69]

I'm still getting the sam error:

Traceback (most recent call last):
File "testing.py ", line 20, in ?
for line in f:
TypeError: loop over non-sequence

[bvdet]

I'm still getting the sam error:

Traceback (most recent call last):
File "testing.py ", line 20, in ?
for line in f:
TypeError: loop over non-sequence

Please read my last post!

for line in f.readlines():