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From "ASF GitHub Bot (JIRA)" <>
Subject [jira] [Commented] (THRIFT-4496) Dealing with language keywords in Thrift (e.g. service method names)
Date Wed, 27 Jun 2018 01:40:00 GMT


ASF GitHub Bot commented on THRIFT-4496:

jeking3 commented on a change in pull request #1567: THRIFT-4496: python specific list of
keywords for python generator

 File path: compiler/cpp/src/thrift/generate/
 @@ -334,6 +333,15 @@ class t_py_generator : public t_generator {
   std::string package_dir_;
   std::string module_;
+  virtual std::set<std::string> lang_keywords() {
+    std::string keywords[] = { "False", "None", "True", "and", "as", "assert", "break", "class",
+          "continue", "def", "del", "elif", "else", "except", "exec", "finally", "for", "from",
+          "global", "if", "import", "in", "is", "lambda", "nonlocal", "not", "or", "pass",
 Review comment:
   Are "exec" and "print" python keywords?

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> Dealing with language keywords in Thrift (e.g. service method names)
> --------------------------------------------------------------------
>                 Key: THRIFT-4496
>                 URL:
>             Project: Thrift
>          Issue Type: New Feature
>          Components: Compiler (General)
>            Reporter: Vera Filippova
>            Priority: Minor
> Apache Thrift compiler doesn't allow to use keywords in any of supported languages as
field names. However, there are other compilers, like Scrooge, which do allow using some keywords
as field identifiers, which leads to incompatibility.
> Assume we had a service with 'delete' method, with Java code generated by Scrooge. Now
we'd like to generate Python code with Apache Thrift, but encounter an error because of the
'delete' keyword.
> I understand that using only Apache Thrift compiler, a user will never encounter this
problem, but I think enabling keywords by request seems feasible.
> h1. Proposal
> It's possible to tweak keywords on code generation stage, e.g. use 'delete_' as a name
of a generated function instead of 'delete', then use the original method name for a protocol
message: writeMethodBegin('delete').
> This feature could be enabled with an additional flag, e.g. --screen-keywords.
> I have a draft for python generator here []
> The questions are, is this functionality welcome? If yes, would it require to have it
supported for all languages?

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