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| author | Roman Garanin <evilkhaoskat@gmail.com> | 2018-12-19 22:09:29 +0300 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2018-12-19 22:09:29 +0300 |
| commit | 7bdc3d8f2f256c4ab704226e392948cad2a0ff13 (patch) | |
| tree | 607b4e3633e566dd378e4fc4c0af0f5e530c71a7 /python3.html.markdown | |
| parent | d5b09d5b13f2dcb29b812c6b55011ab8bab8d1be (diff) | |
[python3/en] A note about common gotcha with mutable defaults
A reminder to be aware of using mutable defaults.
Whether it is a real problem or not depends on exact use-case, but an update fully describing that and updating code with copying list, or defaulting with None and conditional initialization, would probably negatively affect readability of the example.
Diffstat (limited to 'python3.html.markdown')
| -rw-r--r-- | python3.html.markdown | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/python3.html.markdown b/python3.html.markdown index 4d5bb3ae..795d9e99 100644 --- a/python3.html.markdown +++ b/python3.html.markdown @@ -805,6 +805,7 @@ class Superhero(Human): # add additional class attributes: self.fictional = True self.movie = movie + # be aware of mutable default values, since defaults are shared self.superpowers = superpowers # The "super" function lets you access the parent class's methods |