[Python-Dev] stat module in C -- what to do with stat.py? (original) (raw)
Victor Stinner victor.stinner at gmail.com
Fri Jun 21 00:58:44 CEST 2013
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2013/6/20 Serhiy Storchaka <storchaka at gmail.com>:
Now with enumerations in the stdlib the stat module constants are candidates for flag enumerations. How easy will be implement it on C?
Numerical values are less important than S_ISxxx() macros. Example: #define S_ISDOOR(mode) (((mode)&0xF000) == 0xd000) 0xd000 is (stat.S_IFSOCK + stat.S_IFIFO).
And how do you represent the file mode with enums? I don't think that enum should be used in the stat module.
I would prefer a stat object with methods than having to calls low-level functions. Something like: os.stat("document.txt").st_mode.is_reg() versus stat.S_ISREG(os.stat("document.txt").st_mode)
The idea was discussed in http://bugs.python.org/issue11406 to solve a real API design issue. How should os.scandir() return the "is a directory" information with a portable API.
I'm not saying that stat.S_ISREG should go away. The two approaches are complementary.
Victor
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