New submission from Arno-Can Uestuensoez <acue.opensou...@gmail.com>:
Hi, I am using the installation script *adafruit-pitft.sh* which tries to apply *urllib3* which itself tries to install nested dependencies, here *evdev* from PyPI. When the installation is offline - e.g. by internal mirror of debian/raspbian - PyPI is not accessible. The code fails than by an type error exception: > adafruit-pitft.sh # or pitft.sh > https://github.com/adafruit/Raspberry-Pi-Installer-Scripts/blob/master/adafruit-pitft.sh > > ... > > _stacktrace=sys.exc_info()[2]) > File "/usr/share/python-wheels/urllib3-1.13.1-py2.py3 > none-any.whl/urllib3/util/retry.py", line 228, in increment > > total -= 1 > > TypeError: unsupported operand type(s) for -=: 'Retry' and 'int' For the current distribution(based on debian-9.6.0/stretch): > File > "/usr/share/python-wheels/urllib3-1.19.1-py2.py3-none-any.whl/urllib3/util/retry.py", > line 315, in increment > > total -= 1 > > TypeError: unsupported operand type(s) for -=: 'Retry' and 'int' See also: https://stackoverflow.com/questions/37495375/python-pip-install-throws-typeerror-unsupported-operand-types-for-retry The following - dirty *:) - patch enables a sounding error trace: # File: retry.py - in *def increment(self, ..* about line 315 # original: total = self.total # patch: quick-and-dirty-fix # START: if isinstance(self.total, Retry): self.total = self.total.total if type(self.total) is not int: self.total = 2 # default is 10 # END: # continue with original: total = self.total if total is not None: total -= 1 connect = self.connect read = self.read redirect = self.redirect cause = 'unknown' status = None redirect_location = None if error and self._is_connection_error(error): # Connect retry? if connect is False: raise six.reraise(type(error), error, _stacktrace) elif connect is not None: connect -= 1 The sounding output with the temporary patch is(twice...): > Retrying (Retry(total=1, connect=None, read=None, redirect=None)) after > connection broken by > 'ConnectTimeoutError(<requests.packages.urllib3.connection.VerifiedHTTPSConnection > object at/ > > Retrying (Retry(total=0, connect=None, read=None, redirect=None)) after > connection broken by 'ConnectTimeoutError(<requests.packages.urllib3.connection.VerifiedHTTPSConnection object at/ > > Could not find a version that satisfies the requirement evdev (from > versions: ) > > No matching distribution found for evdev > > WARNING : Pip failed to install software! In this case I did not thoroughly analysed the actual error source, thus did a quick and dirty patch only. My proposal is to add the inplace operator to the class *Reply* with the default assignment in case of an type error and display an error message. This is still not really the correct solution, but resolves a lot of confusion by required interpretation of the exception. Arno-Can Uestuensoez ---------- components: Library (Lib) messages: 330574 nosy: Quentin.Pradet, acue, deivid, martin.panter priority: normal severity: normal status: open title: urllib3 fails with type error exception, when cannot reach PyPI - urllib3.util.retry type: crash versions: Python 2.7, Python 3.4, Python 3.5, Python 3.6, Python 3.7, Python 3.8 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue35334> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
