[Python-Dev] Re: [Python-checkins] python/dist/src/Lib warnings.py, 1.19, 1.20 (original) (raw)

Skip Montanaro skip@pobox.com
Wed, 14 May 2003 14:32:23 -0500

--g4s0SsAiBg Content-Type: text/plain; charset=us-ascii Content-Description: message body text Content-Transfer-Encoding: 7bit

Guido> OK.  Please report old and new startup times!

That seems to be a little harder than you'd think. First, I had to fix encodings/init.py as well. Here are some numbers. In all cases the interpreter is as I built it from CVS on May 6. PYTHONSTARTUP is not defined.

"import re" at top level:

Without -S (best real time of 5 runs):

    % time python -c pass
    
    real    0m0.169s
    user    0m0.100s
    sys     0m0.030s

With -S (best of 5):

    % time python -S -c pass
    
    real    0m0.125s
    user    0m0.020s
    sys     0m0.080s

Proposed mods to warnings.py (and provisional replacement of re with
string translation tables in encodings/__init__.py):

Without -S (best of 5):

    % time python -c pass

    real    0m0.187s
    user    0m0.120s
    sys     0m0.030s

With -S (best of 5):

    % time python -S -c pass

    real    0m0.118s
    user    0m0.020s
    sys     0m0.020s

Not too exciting. I verified using -v that these modules are imported in 2.3 with no PYTHONSTARTUP and the -S flag after my changes:

UserDict
copy_reg
linecache
os
posix
posixpath
stat
types
warnings
zipimport

Without -S (and my sitecustomize.py file moved) I get these:

UserDict
copy_reg
linecache
os
posix
posixpath
site
stat
types
warnings
zipimport

I've got to get back to some paying work, so I can't pursue this more at the moment. Attached are my current diffs for warnings.py and encodings/ init.py if someone has a few moments to look at it.

Skip

--g4s0SsAiBg Content-Type: application/octet-stream Content-Disposition: attachment; filename="nore.diff" Content-Transfer-Encoding: base64

SW5kZXg6IExpYi93YXJuaW5ncy5weQo9PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09ClJDUyBmaWxlOiAvY3Zzcm9v dC9weXRob24vcHl0aG9uL2Rpc3Qvc3JjL0xpYi93YXJuaW5ncy5weSx2CnJldHJpZXZpbmcg cmV2aXNpb24gMS4yMApkaWZmIC1jIC1yMS4yMCB3YXJuaW5ncy5weQoqKiogTGliL3dhcm5p bmdzLnB5CTE0IE1heSAyMDAzIDE3OjMzOjUzIC0wMDAwCTEuMjAKLS0tIExpYi93YXJuaW5n cy5weQkxNCBNYXkgMjAwMyAxOToyNzozMiAtMDAwMAoqKioqKioqKioqKioqKioKKioqIDMs OSAqKioqCiAgIyBOb3RlOiBmdW5jdGlvbiBsZXZlbCBpbXBvcnRzIHNob3VsZCAqbm90KiBi ZSB1c2VkCiAgIyBpbiB0aGlzIG1vZHVsZSBhcyBpdCBtYXkgY2F1c2UgaW1wb3J0IGxvY2sg ZGVhZGxvY2suCiAgIyBTZWUgYnVnIDY4MzY1OC4KISBpbXBvcnQgc3lzLCB0eXBlcwogIGlt cG9ydCBsaW5lY2FjaGUKICAKICBfX2FsbF9fID0gWyJ3YXJuIiwgInNob3d3YXJuaW5nIiwg ImZvcm1hdHdhcm5pbmciLCAiZmlsdGVyd2FybmluZ3MiLAotLS0gMyw5IC0tLS0KICAjIE5v dGU6IGZ1bmN0aW9uIGxldmVsIGltcG9ydHMgc2hvdWxkICpub3QqIGJlIHVzZWQKICAjIGlu IHRoaXMgbW9kdWxlIGFzIGl0IG1heSBjYXVzZSBpbXBvcnQgbG9jayBkZWFkbG9jay4KICAj IFNlZSBidWcgNjgzNjU4LgohIGltcG9ydCBzeXMsIHJlLCB0eXBlcwogIGltcG9ydCBsaW5l Y2FjaGUKICAKICBfX2FsbF9fID0gWyJ3YXJuIiwgInNob3d3YXJuaW5nIiwgImZvcm1hdHdh cm5pbmciLCAiZmlsdGVyd2FybmluZ3MiLAoqKioqKioqKioqKioqKioKKioqIDEyOSwxMzUg KioqKgogICAgICAiIiJJbnNlcnQgYW4gZW50cnkgaW50byB0aGUgbGlzdCBvZiB3YXJuaW5n cyBmaWx0ZXJzIChhdCB0aGUgZnJvbnQpLgogIAogICAgICBVc2UgYXNzZXJ0aW9ucyB0byBj aGVjayB0aGF0IGFsbCBhcmd1bWVudHMgaGF2ZSB0aGUgcmlnaHQgdHlwZS4iIiIKLSAgICAg aW1wb3J0IHJlCiAgICAgIGFzc2VydCBhY3Rpb24gaW4gKCJlcnJvciIsICJpZ25vcmUiLCAi YWx3YXlzIiwgImRlZmF1bHQiLCAibW9kdWxlIiwKICAgICAgICAgICAgICAgICAgICAgICAg Im9uY2UiKSwgImludmFsaWQgYWN0aW9uOiAlcyIgJSBgYWN0aW9uYAogICAgICBhc3NlcnQg aXNpbnN0YW5jZShtZXNzYWdlLCBiYXNlc3RyaW5nKSwgIm1lc3NhZ2UgbXVzdCBiZSBhIHN0 cmluZyIKLS0tIDEyOSwxMzQgLS0tLQoqKioqKioqKioqKioqKioKKioqIDE2MywxNjkgKioq KgogIAogICMgSGVscGVyIGZvciBfcHJvY2Vzc29wdGlvbnMoKQogIGRlZiBfc2V0b3B0aW9u KGFyZyk6Ci0gICAgIGltcG9ydCByZQogICAgICBwYXJ0cyA9IGFyZy5zcGxpdCgnOicpCiAg ICAgIGlmIGxlbihwYXJ0cykgPiA1OgogICAgICAgICAgcmFpc2UgX09wdGlvbkVycm9yKCJ0 b28gbWFueSBmaWVsZHMgKG1heCA1KTogJXMiICUgYGFyZ2ApCi0tLSAxNjIsMTY3IC0tLS0K KioqKioqKioqKioqKioqCioqKiAyMDAsMjA2ICoqKioKICAKICAjIEhlbHBlciBmb3IgX3Nl dG9wdGlvbigpCiAgZGVmIF9nZXRjYXRlZ29yeShjYXRlZ29yeSk6Ci0gICAgIGltcG9ydCBy ZQogICAgICBpZiBub3QgY2F0ZWdvcnk6CiAgICAgICAgICByZXR1cm4gV2FybmluZwogICAg ICBpZiByZS5tYXRjaCgiXlthLXpBLVowLTlfXSskIiwgY2F0ZWdvcnkpOgotLS0gMTk4LDIw MyAtLS0tCkluZGV4OiBMaWIvZW5jb2RpbmdzL19faW5pdF9fLnB5Cj09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT0K UkNTIGZpbGU6IC9jdnNyb290L3B5dGhvbi9weXRob24vZGlzdC9zcmMvTGliL2VuY29kaW5n cy9fX2luaXRfXy5weSx2CnJldHJpZXZpbmcgcmV2aXNpb24gMS4xOApkaWZmIC1jIC1yMS4x OCBfX2luaXRfXy5weQoqKiogTGliL2VuY29kaW5ncy9fX2luaXRfXy5weQkyNCBBcHIgMjAw MyAxNjowMjo0OSAtMDAwMAkxLjE4Ci0tLSBMaWIvZW5jb2RpbmdzL19faW5pdF9fLnB5CTE0 IE1heSAyMDAzIDE5OjI3OjMyIC0wMDAwCioqKioqKioqKioqKioqKgoqKiogMjcsMzkgKioq KgogIAogICIiIiMiCiAgCiEgaW1wb3J0IGNvZGVjcywgZXhjZXB0aW9ucywgcmUKICAKICBf Y2FjaGUgPSB7fQogIF91bmtub3duID0gJy0tdW5rbm93bi0tJwogIF9pbXBvcnRfdGFpbCA9 IFsnKiddCiEgX25vcm1fZW5jb2RpbmdfUkUgPSByZS5jb21waWxlKCdbXmEtekEtWjAtOS5d JykKICAKICBjbGFzcyBDb2RlY1JlZ2lzdHJ5RXJyb3IoZXhjZXB0aW9ucy5Mb29rdXBFcnJv ciwKICAgICAgICAgICAgICAgICAgICAgICAgICAgZXhjZXB0aW9ucy5TeXN0ZW1FcnJvcik6 CiAgICAgIHBhc3MKLS0tIDI3LDQ4IC0tLS0KICAKICAiIiIjIgogIAohIGltcG9ydCBjb2Rl Y3MsIGV4Y2VwdGlvbnMsIHN0cmluZwogIAogIF9jYWNoZSA9IHt9CiAgX3Vua25vd24gPSAn LS11bmtub3duLS0nCiAgX2ltcG9ydF90YWlsID0gWycqJ10KISAjX25vcm1fZW5jb2Rpbmdf UkUgPSByZS5jb21waWxlKCdbXmEtekEtWjAtOS5dJykKICAKKyAjIGEgbGl0dGxlIGRhbmNl IHRvIGF2b2lkIHVzaW5nIHJlCisgX25vcm1fZW5jb2RpbmdfdHJhbnMgPSAoIl8iKm9yZCgn MCcpKworICAgICAgICAgICAgICAgICAgICAgICAgIHN0cmluZy5kaWdpdHMrCisgICAgICAg ICAgICAgICAgICAgICAgICAgIl8iKihvcmQoJ0EnKS1vcmQoJzknKS0xKSsKKyAgICAgICAg ICAgICAgICAgICAgICAgICBzdHJpbmcuYXNjaWlfdXBwZXJjYXNlKworICAgICAgICAgICAg ICAgICAgICAgICAgICJfIioob3JkKCdhJyktb3JkKCdaJyktMSkrCisgICAgICAgICAgICAg ICAgICAgICAgICAgc3RyaW5nLmFzY2lpX2xvd2VyY2FzZSsKKyAgICAgICAgICAgICAgICAg ICAgICAgICAiXyIqKDI1Ni1vcmQoJ3onKS0xKSkKKyAgICAgICAgICAgICAgICAgICAgICAg ICAKICBjbGFzcyBDb2RlY1JlZ2lzdHJ5RXJyb3IoZXhjZXB0aW9ucy5Mb29rdXBFcnJvciwK ICAgICAgICAgICAgICAgICAgICAgICAgICAgZXhjZXB0aW9ucy5TeXN0ZW1FcnJvcik6CiAg ICAgIHBhc3MKKioqKioqKioqKioqKioqCioqKiA0OCw1NCAqKioqCiAgICAgICAgICBiZWNv bWVzICdfJy4KICAKICAgICAgIiIiCiEgICAgIHJldHVybiAnXycuam9pbihfbm9ybV9lbmNv ZGluZ19SRS5zcGxpdChlbmNvZGluZykpCiAgCiAgZGVmIHNlYXJjaF9mdW5jdGlvbihlbmNv ZGluZyk6CiAgCi0tLSA1Nyw2MyAtLS0tCiAgICAgICAgICBiZWNvbWVzICdfJy4KICAKICAg ICAgIiIiCiEgICAgIHJldHVybiBzdHJpbmcudHJhbnNsYXRlKGVuY29kaW5nLCBfbm9ybV9l bmNvZGluZ190cmFucykKICAKICBkZWYgc2VhcmNoX2Z1bmN0aW9uKGVuY29kaW5nKToKICAK --g4s0SsAiBg--