[Tutor] Using import

2014-05-04 Thread Felipe Melo
Hello, 
I'm starting with Python and I'm trying to work with "import" but I'm having a 
problem.
I have the file c.py (that works when executed) with a function performing a 
multiplication:
def mult(a,x):  resul=a*xreturn(resul)print 'test 
print'ent1=2ent3=3dedo=mult(ent1,ent3)print 'result: ',dedo

and I have the file b.py that calls c.py but should only print a sentence, 
without use the function in c.py (I tried to use the code without the comment 
part but got the problem, my goal is to use b.py with the commented part being 
part of the code):
import c
ent1=2ent2=7print 'testing b.py without any operation'
#saida=c.mult(ent1,ent2)#print 'the output is:',saida



My problem is when I execute b.py, it executes c.py before b.py:
$ python b.py test printresult:  6testing b.py without any operation



How should I work with this? What I want is use the function defined in c.py 
inside b.py

Regards,Felipe___
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[Tutor] Read a matrix with lines in different behavior

2014-05-23 Thread Felipe Melo
Hello, 

I want to read the below matrix, identify when the characters in front of "want 
= " are equal to "1" and then save in an array and in an output file the 
characters above. But I don't know how to identify the second line and store in 
a variable:

alpha=0 beta=2 gamma=50
want = 0 
alpha=0 beta=2 gamma=50
want = 1 
alpha=0 beta=2 gamma=50
want = 0 
alpha=0 beta=2 gamma=50
want = 1 
alpha=0 beta=2 gamma=50
want = 0 


This is part of the code:

try:
datadir = '/home/me/Test_python/'

fileHandle = open( "%s/teste.txt"%datadir, 'r'
 )
vector = [ ]
for line in fileHandle.readlines():
line=line.strip()
a = line.split(" ")[0]
print a
b = line.split(" ")[1]
print b
c = line.split(" ")[2]
print c
d = line.split(" ")[3]
print d
if d == "1":
   vector.append([a,b,c])
   n = n + 1
fileHandle.close()
file = open("saida.txt","w")
for cont in range(n):
file.write = vector


except:
print "Exception"
sys.exit( 1 )


When I execute the code there is an error when the loop finds the second line


[felipe@grumari Test_python]$ python verificar.py 
alpha=0
beta=2
gamma=50
Exception



Thanks,
Felipe
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