[Tutor] Break outside the loop error (line 23)
Hi, i tried to make a code to execute the functions that i described below.
However i got a break outside the loop error and i have tried to tab and all
that but i still get the same error for line 23. I'm using python 2.7
Please help me. I'm completely new to coding (just started last week)Thank you
for your time, i have pasted the code below.
## open both filesfile1 = open('human_brain_proteins.csv')file2 =
open('human_plasma_proteins.csv')#file1 = open('log1')#file2 = open('log2')
## createdd a counter to count linescount1 = 0count2 = 0
## define 3 lists to be filled in latercommon = list()brain = list()plasma =
list()
## Created the lists for brain and plasma before searching for common
bioseq.while True:count1 += 1s1=file1.readline().partition(',')[0]if s1
and count1 1:brain.append(s1)if not s1:
breakwhile True:count2 += 1s2=file2.readline().partition(',')[0]if s2
and count2 1:plasma.append(s2)if not s2:break
## Compared the lists to find out common bioseq., add the common bioseq. into
the common list,## then remove the common bioseq. from both listsfor item1 in
brain:for item2 in plasma:if item1 == item2:
common.append(item1)brain.remove(item1)
plasma.remove(item2)
## closed both filesfile1.close()file2.close()
## print out the listsprint Common biosequence:print common,\nprint Brain
specific biosequence:print brain,\nprint Plasma specific biosequence:print
plasma,\n
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Re: [Tutor] Break outside the loop error (line 23)
On 31.05.2014 11:23, Sasi - wrote:
Hi, i tried to make a code to execute the functions that i described
below. However i got a break outside the loop error and i have tried to
tab and all that but i still get the same error for line 23. I'm using
python 2.7
Hi,
as a general rule, copy paste the traceback of the actual python
exception instead of summarizing it.
In this specific case the error is obvious though (see below).
Please help me. I'm completely new to coding (just started last week)
Thank you for your time, i have pasted the code below.
## open both files
file1 = open('human_brain_proteins.csv')
file2 = open('human_plasma_proteins.csv')
#file1 = open('log1')
#file2 = open('log2')
## createdd a counter to count lines
count1 = 0
count2 = 0
## define 3 lists to be filled in later
common = list()
brain = list()
plasma = list()
## Created the lists for brain and plasma before searching for common
bioseq.
while True:
count1 += 1
s1=file1.readline().partition(',')[0]
your while loop ends here because the next line is not indented
(probably not what you intended).
if s1 and count1 1:
brain.append(s1)
if not s1:
break
since you are not inside the while loop anymore, there is nothing to
break from.
while True:
count2 += 1
s2=file2.readline().partition(',')[0]
if s2 and count2 1:
plasma.append(s2)
if not s2:
break
## Compared the lists to find out common bioseq., add the common bioseq.
into the common list,
## then remove the common bioseq. from both lists
for item1 in brain:
for item2 in plasma:
if item1 == item2:
common.append(item1)
brain.remove(item1)
plasma.remove(item2)
## closed both files
file1.close()
file2.close()
## print out the lists
print Common biosequence:
print common,\n
print Brain specific biosequence:
print brain,\n
print Plasma specific biosequence:
print plasma,\n
additional suggestion:
read about the set datatype of python and its intersection and
difference methods
(https://docs.python.org/2/library/stdtypes.html#set-types-set-frozenset).
It looks like handling your data as two sets instead of two lists should
be much more convenient.
Best,
Wolfgang
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Re: [Tutor] Break outside the loop error (line 23)
On 31/05/14 10:23, Sasi - wrote:
Hi, i tried to make a code to execute the functions that i described
below. However i got a break outside the loop error
Always post the full error message it usually contains
lots of useful detail.
## Created the lists for brain and plasma before searching for common
bioseq.
while True:
count1 += 1
s1=file1.readline().partition(',')[0]
if s1 and count1 1:
This line is not indented so the loop stops on
the previous line.
brain.append(s1)
if not s1:
break
But your 'break' is here so it is outside the loop.
You need to indent the whole section from
if s1 and count1 1:
so that it is inside the loop.
while True:
count2 += 1
s2=file2.readline().partition(',')[0]
if s2 and count2 1:
plasma.append(s2)
if not s2:
break
And the same problem here.
The indentation defines what is inside the loop.
HTH
--
Alan G
Author of the Learn to Program web site
http://www.alan-g.me.uk/
http://www.flickr.com/photos/alangauldphotos
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