py3: more care for dictionary changing size

sagemath · Jun 27, 2018 · 2daf5b7 · 2daf5b7
1 parent 010ba97
commit 2daf5b7
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Showing 2 changed files with 5 additions and 5 deletions.
diff --git a/src/sage/homology/simplicial_set_morphism.py b/src/sage/homology/simplicial_set_morphism.py
@@ -498,16 +498,16 @@ def __init__(self, data=None, domain=None, codomain=None,
         d = {sigma:data[sigma] for sigma in data if sigma.is_nondegenerate()}
         # For each simplex in d.keys(), add its faces, and the faces
         # of its faces, etc., to d.
-        for simplex in d.keys():
+        for simplex in list(d.keys()):
             faces = domain.faces(simplex)
             add = []
             if faces:
-                for (i,sigma) in enumerate(faces):
+                for (i, sigma) in enumerate(faces):
                     nondegen = sigma.nondegenerate()
                     if nondegen not in d:
-                        add.append((sigma,i,simplex))
+                        add.append((sigma, i, simplex))
             while add:
-                (sigma,i,tau) = add.pop()
+                (sigma, i, tau) = add.pop()
                 # sigma is the ith face of tau.
                 face_f = codomain.face(d[tau], i)
                 degens = sigma.degeneracies()

diff --git a/src/sage/manifolds/topological_submanifold.py b/src/sage/manifolds/topological_submanifold.py
@@ -453,7 +453,7 @@ def adapted_chart(self, index="", latex_index=""):
         if latex_postscript == "":
             latex_postscript = "_" + self._ambient._latex_()
 
-        for domain in domains:
+        for domain in list(domains):
             name = " ".join([domain[0][i]._repr_()+postscript+":{"
                              + domain[0][i]._latex_()+"}"+latex_postscript
                              for i in self.irange()]) + " "\