CODEWITHSUNDEEP
pythonfile-iodictionary
Ryan Tice
Ryan Tice

Reputation: 731

python adding to dictionary from external file

I have an external file that I need to have into a dictionary. Each article begins with <NEW DOCUMENT>, and I am unaware of how I can pull all the information from the file, starting on the line below <newdoc> and ending before reaching the other <newdoc>. Here is what I have so far.

for line in file2:
    line = line.strip()
    line_list = line.split()
    if "NEW DOCUMENT" in line:
        doc_num+=1
        new_dict[doc_num] = line
        print(new_dict)

The file looks like this.

<NEW DOCUMENT>
Look on the bright 
side of Life.
<NEW DOCUMENT>
look on the very, dark
side of the Moon

Upvotes: 0

Views: 310

Answers (3)

alexis
alexis

Reputation: 50200

This'll do it for you:

docs = file2.read().split("<NEW DOCUMENT>\n")

It gives you a list, not a dictionary, because why would you want a dictionary whose keys are sequential numbers? But if you must have a dictionary, use:

new_dict = dict(enumerate(docs))

Upvotes: 0

Eric
Eric

Reputation: 97601

Here's a modification to your solution:

   

docs = []
document = []
for line in file2:
    line = line.strip()
    if line == "<NEW DOCUMENT>":
        # start a new document
        document = []
        docs.append(document)
    else:
        # append to the current one
        document.append(line)

# convert lists of lines into a string
docs = ['\n'.join(document) for document in docs]

Upvotes: 2

Ashwini Chaudhary
Ashwini Chaudhary

Reputation: 250971

something like this:

In [7]: with open("data1.txt") as f:
    data=f.read()
    dic=dict((i,x.strip()) for i,x in enumerate(data.split("<NEW DOCUMENT>")[1:]))
    print dic
   ....:     
   ....:     
{0: 'Look on the bright \nside of Life.', 1: 'look on the very, dark\nside of the Moon'}

Upvotes: 0

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