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snippets/python/s/capitalize.md

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+---
+title: Capitalize string
+type: snippet
+language: python
+tags: [string]
+cover: palm-tree-house
+dateModified: 2020-11-02T19:27:07+02:00
+---
+
+Capitalizes the first letter of a string.
+
+- Use list slicing and `str.upper()` to capitalize the first letter of the string.
+- Use `str.join()` to combine the capitalized first letter with the rest of the characters.
+- Omit the `lower_rest` parameter to keep the rest of the string intact, or set it to `True` to convert to lowercase.
+
+```py
+def capitalize(s, lower_rest = False):
+  return ''.join([s[:1].upper(), (s[1:].lower() if lower_rest else s[1:])])
+```
+
+```py
+capitalize('fooBar') # 'FooBar'
+capitalize('fooBar', True) # 'Foobar'
+```