From 91bdb0b167b34d26420ee337defab5acaf2c75d3 Mon Sep 17 00:00:00 2001
From: Anton Akhmerov <anton.akhmerov@gmail.com>
Date: Mon, 7 Jan 2019 16:06:00 +0100
Subject: [PATCH] move a value range check to the place before the value is
used
---
kwant/kpm.py | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/kwant/kpm.py b/kwant/kpm.py
index b5b1c355..4a24a9ad 100644
--- a/kwant/kpm.py
+++ b/kwant/kpm.py
@@ -195,6 +195,9 @@ class SpectralDensity:
# store this vector for reproducibility
self._v0 = np.exp(2j * np.pi * rng.random_sample(hamiltonian.shape[0]))
+ if eps <= 0:
+ raise ValueError("'eps' must be positive")
+
# Hamiltonian rescaled as in Eq. (24)
self.hamiltonian, (self._a, self._b) = _rescale(hamiltonian,
eps=self.eps,
@@ -209,8 +212,6 @@ class SpectralDensity:
if num_moments <= 0 or num_moments != int(num_moments):
raise ValueError("'num_moments' must be a positive integer")
- if eps <= 0:
- raise ValueError("'eps' must be positive")
if vector_factory is None:
self._vector_factory = _VectorFactory(
--
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