fix patch builtin not work in py3

[Hanaasagi]

resolves #541

[codecov-io]

Codecov Report

Merging #545 into master will decrease coverage by <1%.
The diff coverage is 0%.

@@          Coverage Diff          @@
##           master   #545   +/-   ##
=====================================
- Coverage      46%    46%   -1%     
=====================================
  Files          81     81           
  Lines        7966   7970    +4     
  Branches     1362   1364    +2     
=====================================
+ Hits         3709   3710    +1     
- Misses       3998   4001    +3     
  Partials      259    259

Flag	Coverage Δ
#ipv6	15% <0%> (-1%)	⬇️
#py27epolls	50% <0%> (-1%)	⬇️
#py27poll	49% <0%> (-1%)	⬇️
#py27selects	49% <0%> (-1%)	⬇️
#py34epolls	42% <0%> (-1%)	⬇️
#py34poll	42% <0%> (ø)	⬆️
#py34selects	42% <0%> (-1%)	⬇️
#py35epolls	42% <0%> (-1%)	⬇️
#py35poll	42% <0%> (-1%)	⬇️
#py35selects	42% <0%> (ø)	⬆️
#py36epolls	42% <0%> (ø)	⬆️
#py36poll	42% <0%> (-1%)	⬇️
#py36selects	42% <0%> (-1%)	⬇️
#py37epolls	42% <0%> (-1%)	⬇️
#py37poll	42% <0%> (-1%)	⬇️
#py37selects	42% <0%> (-1%)	⬇️

Impacted Files	Coverage Δ
eventlet/green/builtin.py	0% <0%> (ø)	⬆️
eventlet/hubs/hub.py	89% <0%> (ø)	⬆️

---

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[codecov-io]

Codecov Report

Merging #545 into master will decrease coverage by 0%.
The diff coverage is 0%.

@@          Coverage Diff           @@
##           master    #545   +/-   ##
======================================
- Coverage      44%     44%   -1%     
======================================
  Files          87      87           
  Lines       11839   11844    +5     
  Branches     1777    1779    +2     
======================================
- Hits         5281    5280    -1     
- Misses       6163    6168    +5     
- Partials      395     396    +1     

Flag	Coverage Δ
#ipv6	16% <0%> (-1%)	⬇️
#py27epolls	56% <0%> (-1%)	⬇️
#py27poll	56% <0%> (-1%)	⬇️
#py27selects	55% <0%> (-1%)	⬇️
#py35epolls	49% <0%> (-1%)	⬇️
#py35poll	49% <0%> (-1%)	⬇️
#py35selects	49% <0%> (-1%)	⬇️
#py36epolls	49% <0%> (-1%)	⬇️
#py36poll	49% <0%> (-1%)	⬇️
#py36selects	49% <0%> (-1%)	⬇️
#py37epolls	49% <0%> (+<1%)	⬆️
#py37poll	49% <0%> (-1%)	⬇️
#py37selects	49% <0%> (-1%)	⬇️
#py38epolls	41% <0%> (-1%)	⬇️
#py38poll	41% <0%> (-1%)	⬇️
#py38selects	40% <0%> (-1%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
eventlet/green/builtin.py	0% <0%> (ø)
eventlet/wsgi.py	70% <0%> (-1%)	⬇️

---

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Δ = absolute <relative> (impact), ø = not affected, ? = missing data
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[jstasiak]

This patch needs a test

[jstasiak]

LGTM!