[Tutor] Help

[she haohao]

Hi,
 
 
I am a beginner in python and I have a problem here and I hope someone can help me.
 
Your help is greatly appreciated.
 
Question.
 
Say I have a .fa file and I want to print a subsequence from the file without the \n how can i do it.
 
Example: Inside the test.fa file I have
 
>chromosome 1
ACTGTGTTC
ACGTCGACC
AVGTTTTTT
ACGTTaGTC
 
so if I say i wan the subsequence starting from the 7th character to the 11th(i.e when i let p=(7+11)/2=9 and v=2) character.(excluding the first line), mean I want TTCAC.
 
So how should I write the code so that \n does not appear if i want p=10 and v=3.
 
Thanks for the help.
 
Have a wonderful day ahead!
Angeline

 		 	   		  
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