CODEWITHSUNDEEP
pythonpython-2.7
SUBHABRATA
SUBHABRATA

Reputation: 121

Reading lines from big string

I am slicing out a big chunk of text from a file. Now the chunk is stored in a variable. Like,

str="from child hood days i liked sweet and savoir. in the early days my mother cooked great deal of sweet meats in home and all my relatives had a nice taste for good sweets. even in remote assam town we thronged miles to procure good sweets. and my sweet eating habit was pretty known. in my childhood i could had as good as 30 to 40 rosgollas at one seating after a full course of lunch. though i was not among the best in my family."

But I now want to read each line in the same way as we write as 

for line in file:
     print line

My question is can we do this, or should I write back to the file and then do the operation? If any one can kindly help.

Regards, Subhabrata Banerjee Gurgaon India

Upvotes: 0

Views: 124

Answers (3)

Jo So
Jo So

Reputation: 26501

for line in str.split('\n'):
    doit(line)

Though that is not reading parsing lazily. For really big chunks read parse lazily:

for match in re.finditer(r'(.*)\n', str):
    print match.group(1)

Upvotes: 1

cwiggo
cwiggo

Reputation: 2599

Maybe use a string tokenizer to handle the 'big string' by splitting it up into the 'smaller strings'. This will make the process a lot easier. By the way, what are you coding in?

Upvotes: 0

Ignacio Vazquez-Abrams
Ignacio Vazquez-Abrams

Reputation: 798746

Dump the string into a StringIO.StringIO and then you can use file operations on it. Do note that your sample text only has one line in it though.

Upvotes: 1

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