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Python - StringIO - Treat Text Like File

🐍 At times we need a file to run a code. Python allows you to treat a text/string like a file for that purpose. It is not really a file, but it lets you treat it that way. You need a module called StringIO for it.

Use Jupyter Notebooks to run the following code.

StringIO

Let's begin by importing StringIO

import io

Next, we create a string and store it in a variable.

message = 'This is just a normal string.'

Let's apply StringIO magic to it and make it look like a file.

f = io.StringIO(message)

Now, we can do all file operations on it.

Like read

f.read()

Output:
'This is just a normal string.'

Like Write

f.write(' Second line written to file like object')

Output:
40

Like moving cursor to a location in the file

f.seek(0)

Output:
0

Like read again

f.read()

Output:
'This is just a normal string. Second line written to file like object'

Like closing the file

f.close()

After closing 'f' cannot carry out the file functions.
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