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-rw-r--r--src/sage/calculus/riemann.pyx2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/sage/calculus/riemann.pyx b/src/sage/calculus/riemann.pyx
index dae9231..f0ebd6b 100644
--- a/src/sage/calculus/riemann.pyx
+++ b/src/sage/calculus/riemann.pyx
@@ -26,7 +26,7 @@ Development supported by NSF award No. 0702939.
#*****************************************************************************
from __future__ import print_function
-include "cysignals/signals.pxi"
+from cysignals.signals cimport sig_on, sig_off
from sage.misc.decorators import options
from sage.plot.all import list_plot, Graphics