Minor ISSN and ISBN documentation fixes.

stdnum/isbn.py

@@ -81,15 +81,15 @@ def compact(number, convert=False):
 
 def _calc_isbn10_check_digit(number):
     """Calculate the ISBN check digit for 10-digit numbers. The number passed
-    should not have the check bit included."""
+    should not have the check digit included."""
     check = sum((i + 1) * int(n)
                 for i, n in enumerate(number)) % 11
     return 'X' if check == 10 else str(check)
 
 
 def validate(number, convert=False):
     """Check if the number provided is a valid ISBN (either a legacy 10-digit
-    one or a 13-digit one). This checks the length and the check bit but does
+    one or a 13-digit one). This checks the length and the check digit but does
     not check if the group and publisher are valid (use split() for that)."""
     number = compact(number, convert=False)
     if not isdigits(number[:-1]):
@@ -123,7 +123,7 @@ def isbn_type(number):
 
 def is_valid(number):
     """Check if the number provided is a valid ISBN (either a legacy 10-digit
-    one or a 13-digit one). This checks the length and the check bit but does
+    one or a 13-digit one). This checks the length and the check digit but does
     not check if the group and publisher are valid (use split() for that)."""
     try:
         return bool(validate(number))
@@ -174,7 +174,7 @@ def to_isbn10(number):
 
 def split(number, convert=False):
     """Split the specified ISBN into an EAN.UCC prefix, a group prefix, a
-    registrant, an item number and a check-digit. If the number is in ISBN-10
+    registrant, an item number and a check digit. If the number is in ISBN-10
     format the returned EAN.UCC prefix is '978'. If the convert parameter is
     True the number is converted to ISBN-13 format first."""
     # clean up number
@@ -198,7 +198,7 @@ def split(number, convert=False):
 def format(number, separator='-', convert=False):
     """Reformat the number to the standard presentation format with the
     EAN.UCC prefix (if any), the group prefix, the registrant, the item
-    number and the check-digit separated (if possible) by the specified
+    number and the check digit separated (if possible) by the specified
     separator. Passing an empty separator should equal compact() though this
     is less efficient. If the convert parameter is True the number is
     converted to ISBN-13 format first."""

stdnum/issn.py

@@ -61,8 +61,8 @@ def compact(number):
 
 
 def calc_check_digit(number):
-    """Calculate the ISSN check digit for 10-digit numbers. The number passed
-    should not have the check bit included."""
+    """Calculate the ISSN check digit for 8-digit numbers. The number passed
+    should not have the check digit included."""
     check = (11 - sum((8 - i) * int(n)
                       for i, n in enumerate(number))) % 11
     return 'X' if check == 10 else str(check)