more fixes

Author: fchapoton

src/sage/rings/real_mpfi.pyx

@@ -1181,7 +1181,7 @@ cdef class RealIntervalFieldElement(RingElement):
             sage: RealIntervalFieldElement.__new__(RealIntervalFieldElement, ZZ)
             Traceback (most recent call last):
             ...
-            TypeError: cannot convert sage.rings.integer_ring.IntegerRing_class to sage.rings.real_mpfi.RealIntervalField_class
+            TypeError: Cannot convert sage.rings.integer_ring.IntegerRing_class to sage.rings.real_mpfi.RealIntervalField_class
             sage: RealIntervalFieldElement.__new__(RealIntervalFieldElement, RIF)
             [.. NaN ..]
 
@@ -5356,7 +5356,8 @@ def __create__RealIntervalField_version0(prec, sci_not):
     """
     return RealIntervalField(prec, sci_not)
 
-## Keep all old versions!!!
+
+# Keep all old versions!!!
 def __create__RealIntervalFieldElement_version0(parent, x, base=10):
     """
     For pickling.
@@ -5368,6 +5369,7 @@ def __create__RealIntervalFieldElement_version0(parent, x, base=10):
     """
     return RealIntervalFieldElement(parent, x, base=base)
 
+
 def __create__RealIntervalFieldElement_version1(parent, lower, upper):
     """
     For pickling.

src/sage/rings/real_mpfr.pyx

@@ -1341,7 +1341,7 @@ cdef class RealNumber(sage.structure.element.RingElement):
             sage: RealNumber.__new__(RealNumber, ZZ)
             Traceback (most recent call last):
             ...
-            TypeError: cannot convert sage.rings.integer_ring.IntegerRing_class to sage.rings.real_mpfr.RealField_class
+            TypeError: Cannot convert sage.rings.integer_ring.IntegerRing_class to sage.rings.real_mpfr.RealField_class
             sage: RealNumber.__new__(RealNumber, RR)
             NaN
         """
@@ -6105,7 +6105,7 @@ def create_RealField(*args, **kwds):
         See http://trac.sagemath.org/24511 for details.
         Real Field with 53 bits of precision
     """
-    #deprecation has already been imported in this file
+    # deprecation has already been imported in this file
     deprecation(24511, "Please import create_RealField from sage.rings.real_field")
     from sage.rings.real_field import create_RealField as cr
     return cr(*args, **kwds)

src/sage/rings/universal_cyclotomic_field.py

@@ -561,7 +561,7 @@ def to_cyclotomic_field(self, R=None):
             sage: CF(E(5)) # indirect doctest
             Traceback (most recent call last):
             ...
-            TypeError: Cannot coerce zeta5 into Cyclotomic Field of order 7 and
+            TypeError: cannot coerce zeta5 into Cyclotomic Field of order 7 and
             degree 6
 
             sage: CF = CyclotomicField(10)

src/sage/structure/element.pyx

@@ -424,7 +424,7 @@ cdef class Element(SageObject):
             sage: q._set_parent(float)
             Traceback (most recent call last):
             ...
-            TypeError: cannot convert type to sage.structure.parent.Parent
+            TypeError: Cannot convert type to sage.structure.parent.Parent
         """
         self._parent = <Parent?>parent
 
@@ -4432,11 +4432,11 @@ def coerce_binop(method):
 
     Another real example::
 
-        sage: R1=QQ['x,y']
-        sage: R2=QQ['x,y,z']
-        sage: f=R1(1)
-        sage: g=R1(2)
-        sage: h=R2(1)
+        sage: R1 = QQ['x,y']
+        sage: R2 = QQ['x,y,z']
+        sage: f = R1(1)
+        sage: g = R1(2)
+        sage: h = R2(1)
         sage: f.gcd(g)
         1
         sage: f.gcd(g,algorithm='modular')