CODEWITHSUNDEEP
pythonpython-3.xregexstringtext
0xSingularity
0xSingularity

Reputation: 570

Remove instances of words following a character in python

I'm trying to preprocess message data from the StockTwits API, how can I remove all instances of $name from a string in python?

For example if the string is:

$AAPL $TSLA $MSFT are all going up!

The output would be:

are all going up!

Upvotes: 1

Views: 47

Answers (2)

slightlynybbled
slightlynybbled

Reputation: 2645

I'm not sure I get it, but If I'm to remove all instances of words that start with $, I would break into individual strings, then look for $, and re-form using a list comprehension.

substrings = string.split(' ')
substrings = [s for s in substrings if not s.startswith('$')]
new_string = ' '.join(substrings)

Some would use regular expressions, which are likely more computationally efficient, but less easy to read.

Upvotes: 1

orlp
orlp

Reputation: 117661

Something like this would do:

>>> s = "$AAPL $TSLA $MSFT are all going up!"
>>> re.sub(r"\$[a-zA-Z0-9]+\s*", "", s)
'are all going up!'

This allows numbers in the name as well, remove 0-9 if that's not what you want (it would remove e.g. $15 as well).

Upvotes: 2

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