issue #9942 warning: Member try (variable) of namespace lib_validation is not documented.

Made an exception for some Python keywords in the detection of variable names.

Author: albert-github

src/pyscanner.l

@@ -310,8 +310,7 @@ STARTDOCSYMS      "##"
                         yyextra->packageCommentAllowed = FALSE;
                         BEGIN(VariableDec);
                       }
-     ^{B}{IDENTIFIER}/{B}"="[^=] |
-     ^{B}{IDENTIFIER}/{B}":" { // variable
+     ^{B}{IDENTIFIER}/{B}"="[^=] { //variabele
                         if (yyextra->search_count) REJECT;
                         yyextra->indent=computeIndent(yytext);
                         yyextra->current->section   = Entry::VARIABLE_SEC;
@@ -322,6 +321,19 @@ STARTDOCSYMS      "##"
                         yyextra->packageCommentAllowed = FALSE;
                         BEGIN(VariableDec);
                       }
+     ^{B}{IDENTIFIER}/{B}":" { // variable
+                        if (yyextra->search_count) REJECT;
+                        QCString id = QCString(yytext).stripWhiteSpace();
+                        if (id =="try" || id == "else" || id == "except" || id == "finally") REJECT;
+                        yyextra->indent=computeIndent(yytext);
+                        yyextra->current->section   = Entry::VARIABLE_SEC;
+                        yyextra->current->name      = id;
+                        yyextra->current->fileName  = yyextra->fileName;
+                        yyextra->current->startLine = yyextra->yyLineNr;
+                        yyextra->current->bodyLine  = yyextra->yyLineNr;
+                        yyextra->packageCommentAllowed = FALSE;
+                        BEGIN(VariableDec);
+                      }
      {B}{IDENTIFIER}/({B},{B}{IDENTIFIER})*{B}")"*{B}"="[^=] { // list of variables, we cannot place the default value
                                                                // so we will skip it later on in a general rule
                                                                // Also note ")" this is to catch also (a,b). the "("