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You're reading from  Scientific Computing with Python - Second Edition

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Published inJul 2021
Reading LevelIntermediate
PublisherPackt
ISBN-139781838822323
Edition2nd Edition
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Authors (3):
Claus Führer
Claus Führer
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Claus Führer

Claus Führer is a professor of scientific computations at Lund University, Sweden. He has an extensive teaching record that includes intensive programming courses in numerical analysis and engineering mathematics across various levels in many different countries and teaching environments. Claus also develops numerical software in research collaboration with industry and received Lund University's Faculty of Engineering Best Teacher Award in 2016.
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14.1.2 Files are iterables

A file is, in particular, iterable (see Section 9.3: Iterable objects). Files iterate their lines:

with open(name,'r') as myfile:
    for line in myfile:
        data = line.split(';')
        print(f'time {data[0]} sec temperature {data[1]} C')

The lines of the file are returned as strings. The string method split is a possible tool to convert the string to a list of strings; for example:

data = 'aa;bb;cc;dd;ee;ff;gg'
data.split(';') # ['aa', 'bb', 'cc', 'dd', 'ee', 'ff', 'gg']

data = 'aa bb cc dd ee ff gg'
data.split(' ') # ['aa', 'bb', 'cc', 'dd', 'ee', 'ff', 'gg']

Since the object myfile is iterable, we can also do a direct extraction into a list, as follows:

data = list(myfile)
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Scientific Computing with Python - Second Edition
Published in: Jul 2021Publisher: PacktISBN-13: 9781838822323

Authors (3)

author image
Claus Führer

Claus Führer is a professor of scientific computations at Lund University, Sweden. He has an extensive teaching record that includes intensive programming courses in numerical analysis and engineering mathematics across various levels in many different countries and teaching environments. Claus also develops numerical software in research collaboration with industry and received Lund University's Faculty of Engineering Best Teacher Award in 2016.
Read more about Claus Führer