Replace method

Q: How deeply does Get Programming: Learn to code with Python cover replace method?

Demonstrates the two-argument form with worked replacements and quick checks, without descending into implementation details.

As explained in Get Programming: Learn to code with Python

replace is a Python string method that returns a string with occurrences of one substring substituted by another substring.

The replace() method substitutes every occurrence of one substring with another. Put the substring to find first and the replacement substring second, separated by a comma. section 8.1

Replace spaces with underscores

"variables have no spaces".replace(" ", "_") evaluates to "variables_have_no_spaces". The first argument is the text to find; the second is the text inserted in its place. section 8.1

Try these quick checks with a = "Raining in the spring time.":

a.replace("R", "r") changes the initial capital letter. section 8.1
a.replace("ing", "") removes each matching occurrence. section 8.1
b = a.replace("time", "tiempo") stores the changed string in b. section 8.1

How Get Programming: Learn to code with Python covers it

Cover of Get Programming: Learn to code with Python

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Also explained in

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The Quick Python Book, Fourth Editionreplace is a Python string method that returns a copy with occurrences of a specified substring replaced by another string, optionally limiting the number of replacements.
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Graph Algorithms for Data ScienceThe Cypher replace function returns a string formed by replacing occurrences of a specified substring with another string.
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Secrets of the JavaScript Ninja, Second EditionA JavaScript String method that returns a new string with matched text replaced by specified text or text produced by a callback.
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100 Java Mistakes and How to Avoid ThemThe Java String.replace method returns a string in which matching occurrences of a target character or sequence are replaced with a specified replacement character or sequence.

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Related concepts

Mapuses · A map is an associative data structure that stores key-value pairs and supports retrieving values by key.
regular expressionuses · A formal pattern notation that describes sets of strings and enables text to be matched, searched, extracted, or transformed.
translatealternative to · str.translate is a Python string method that returns a copy with characters transformed or deleted according to a translation table.
functionuses · A function is a callable program unit that performs an operation, may accept inputs, and can produce a result or side effect.
substringuses · A substring is a contiguous sequence of characters contained within a larger string or character sequence.

This explainer was generated by Manning's knowledge graph from the text of Get Programming: Learn to code with Python. The section links point to the parts of the book it draws on.