Pydpiper should use pathlib's Path class to store all filepaths

[nzxwang]

Inspired by issue #443. filepaths should not be stored as strings and python>=3.4 has a builtin pathlib library for this. It also doesn't take all that much space

>>> sys.getsizeof("/hpf/largeprojects/MICe/lqiu/collaborator_40um/Picketts/Snf2H-Snf2L/symlink_distcorr_files//Snf2Hcko-emxcre_KO1.mnc")
164
>>> sys.getsizeof(Path("/hpf/largeprojects/MICe/lqiu/collaborator_40um/Picketts/Snf2H-Snf2L/symlink_distcorr_files//Snf2Hcko-emxcre_KO1.mnc"))
112
>>> sys.getsizeof("Snf2Hcko-emxcre_KO1.mnc")
72
>>> sys.getsizeof(Path("Snf2Hcko-emxcre_KO1.mnc"))
112

[bcdarwin]

I could be wrong, but at a glance it looks to me like it takes 112 extra bytes per string 🙂

________________________________ From: Nick Wang <[email protected]> Sent: October 29, 2019 12:52 PM To: Mouse-Imaging-Centre/pydpiper <[email protected]> Cc: Subscribed <[email protected]> Subject: [Mouse-Imaging-Centre/pydpiper] Pydpiper should use pathlib's Path class to store all filepaths (#444) filepaths should not be stored as strings and python>=3.4 has a builtin pathlib library for this. It also doesn't take all that much space

>> sys.getsizeof("/hpf/largeprojects/MICe/lqiu/collaborator_40um/Picketts/Snf2H-Snf2L/symlink_distcorr_files//Snf2Hcko-emxcre_KO1.mnc")

164

>> sys.getsizeof(Path("/hpf/largeprojects/MICe/lqiu/collaborator_40um/Picketts/Snf2H-Snf2L/symlink_distcorr_files//Snf2Hcko-emxcre_KO1.mnc"))

112

>> sys.getsizeof("Snf2Hcko-emxcre_KO1.mnc")

72

>> sys.getsizeof(Path("Snf2Hcko-emxcre_KO1.mnc"))

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