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-rw-r--r--numpy/core/function_base.py4
1 files changed, 3 insertions, 1 deletions
diff --git a/numpy/core/function_base.py b/numpy/core/function_base.py
index e50e1a505..532ef2950 100644
--- a/numpy/core/function_base.py
+++ b/numpy/core/function_base.py
@@ -25,7 +25,7 @@ def linspace(start, stop, num=50, endpoint=True, retstep=False, dtype=None):
evenly spaced samples, so that `stop` is excluded. Note that the step
size changes when `endpoint` is False.
num : int, optional
- Number of samples to generate. Default is 50.
+ Number of samples to generate. Default is 50. Must be non-negative.
endpoint : bool, optional
If True, `stop` is the last sample. Otherwise, it is not included.
Default is True.
@@ -82,6 +82,8 @@ def linspace(start, stop, num=50, endpoint=True, retstep=False, dtype=None):
"""
num = int(num)
+ if num < 0:
+ raise ValueError("Number of samples, %s, must be non-negative." % num)
div = (num - 1) if endpoint else num
# Convert float/complex array scalars to float, gh-3504