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| author | Raymond Hettinger <rhettinger@users.noreply.github.com> | 2022-12-15 18:40:45 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-12-15 18:40:45 (GMT) |
| commit | b430399d41fa88e9040cd055e55cf9211bf63c61 (patch) | |
| tree | a83f25c8bb342a19bbefe8f76208eff2c0f43fc1 /Lib | |
| parent | 8356c14b4f81f4d0010afb61610edacf4068b804 (diff) | |
| download | cpython-b430399d41fa88e9040cd055e55cf9211bf63c61.zip cpython-b430399d41fa88e9040cd055e55cf9211bf63c61.tar.gz cpython-b430399d41fa88e9040cd055e55cf9211bf63c61.tar.bz2 | |
GH-100234: Set a default value for random.expovariate() (GH-100235)
Diffstat (limited to 'Lib')
| -rw-r--r-- | Lib/random.py | 2 | ||||
| -rw-r--r-- | Lib/test/test_random.py | 1 |
2 files changed, 2 insertions, 1 deletions
diff --git a/Lib/random.py b/Lib/random.py index c70294e..e60b729 100644 --- a/Lib/random.py +++ b/Lib/random.py @@ -577,7 +577,7 @@ class Random(_random.Random): """ return _exp(self.normalvariate(mu, sigma)) - def expovariate(self, lambd): + def expovariate(self, lambd=1.0): """Exponential distribution. lambd is 1.0 divided by the desired mean. It should be diff --git a/Lib/test/test_random.py b/Lib/test/test_random.py index 1e825c35..67de54c 100644 --- a/Lib/test/test_random.py +++ b/Lib/test/test_random.py @@ -988,6 +988,7 @@ class TestDistributions(unittest.TestCase): g.random = x[:].pop; g.uniform(1,10) g.random = x[:].pop; g.paretovariate(1.0) g.random = x[:].pop; g.expovariate(1.0) + g.random = x[:].pop; g.expovariate() g.random = x[:].pop; g.weibullvariate(1.0, 1.0) g.random = x[:].pop; g.vonmisesvariate(1.0, 1.0) g.random = x[:].pop; g.normalvariate(0.0, 1.0) |