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MySQL backend fixes for Python 3.
With Python 2, text sent to and from MySQL is treated as bytes in
Python. The database may be recorded by MySQL as having some other
encoding (latin1 being the default in some MySQL versions - Roundup
does not set an encoding explicitly, unlike in back_postgresql), but
as long as MySQL's notion of the connection encoding agrees with its
notion of the database encoding, no conversions actually take place
and the bytes are stored and returned as-is.
With Python 3, text sent to and from MySQL is treated as Python
Unicode strings. When the database and connection encoding is latin1,
that means the bytes stored in the database under Python 2 are
interpreted as latin1 and converted from that to Unicode, producing
incorrect results for any non-ASCII characters; furthermore, if trying
to store new non-ASCII data in the database under Python 3, any
non-latin1 characters produce errors.
This patch arranges for both the connection and database character
sets to be UTF-8 when using Python 3, and documents a need to export
and import the database when moving from Python 2 to Python 3 with
this backend.
| author | Joseph Myers <jsm@polyomino.org.uk> |
|---|---|
| date | Sun, 16 Sep 2018 16:19:20 +0000 |
| parents | dc6cc2dbd70a |
| children | 33f8bb777659 b68d3d8531d5 |
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Acknowledgements ================ The Roundup Initative is a group of people that regularily works together to produce new releases of the Roundup Issue Tracker. We like to thank our community and all organisation and people that support us doing so with code, money, time, testing, reports, ideas and everything else that helped! `Announcement with changelog for current release.`_ .. _`Announcement with changelog for current release.`: announcement.html 1.6 --- 1.6.0 ~~~~~ Maintainer: Ralf Schlatterbeck, John Rouillard Release Manager: John Rouillard Developer activity by changesets:: rouilj at ieee.org 234 ********************************************** rsc at runtux.com 30 ****** john at jerrykan.com 26 ***** bernhard at intevation.de 10 ** esr at thyrsus.com 8 ** techtonik at gmail.com 5 * dangchau1991 at gmail.com 1 pf at artcom-gmbh.de 1 thomas at intevation.de 1 Frank Niessink, Anthony (antmail), Bruce Tulloch, kinggreedy, David Wolever, Tom Ekberg, Peter Funk, Daniel Diniz, W. Trevor King, Igor Ippolitov, Joseph Myers, r.david.murray, martin.v.loewis, Henry (henryl), David Wolever, Stuart McGraw (smcgraw), Philipp Gortan (mephinet), Ezio Melotti, Heiko Stegmann, Trent Gamblin, Anton Schur 1.5 --- 1.5.1 ~~~~~ Maintainer: Ralf Schlatterbeck Release Manager: Anatoly Techtonik Developer activity by changesets:: hg churn -c --rev 1.5.0:1.5.1 techtonik@gmail.com 98 ********************************************** bernhard@intevation.de 44 ********************* Bernhard Reiter rsc@runtux.com 37 ***************** Ralf Schlatterbeck john@jerrykan.com 26 ************ John Kristensen thomas@intevation.de 22 ********** Thomas Arendsen Hein rouilj@ieee.org 5 ** John P. Rouillard caulagi@gmail.com 2 * Pradip Caulagi ced@b2ck.com 1 Cédric Krier Mathias Behrle, Ezio Melotti, R David Murray, James Mack, Thibault Fevry, Kai Storbeck, Kay Hayen, Karl-Philipp Richter 1.5.0 ~~~~~ Maintainer: Ralf Schlatterbeck:: hg churn -c --rev 1.4.21:1.5.0 techtonik@gmail.com 37 ********************************************** Anatoly Techtonik bernhard@intevation.de 17 ********************* Bernhard Reiter caulagi@gmail.com 16 ******************** Pradip Caulagi rouilj@ieee.org 8 ********** John P. Rouillard rsc@runtux.com 6 ******* Ralf Schlatterbeck thomas@intevation.de 5 ****** Thomas Arendsen Hein Tom Ekberg, Erik Hanspers pre 1.5.0 --------- Go Ping, you rock! Also, go Common Ground, ekit.com and Bizar Software for letting me implement this system on their time. Thanks also to the many people on the mailing list, in the sourceforge project and those who just report bugs: Christian Aastorp, Thomas Arendsen Hein, Nerijus Baliunas, Benni Bärmann, Anthony Baxter, David Benjamin, Marlon van den Berg, Bo Berglund, Olly Betts, Stéphane Bidoul, Rafal Bisingier, Cameron Blackwood, Jeff Blaine, Duncan Booth, Seb Brezel, J Alan Brogan, Titus Brown, Steve Byan, Brett Cannon, Godefroid Chapelle, Pradip Caulagi, Eli Collins, Roch'e Compaan, Wil Cooley, Joe Cooper, Kelley Dagley, Bruno Damour, Bradley Dean, Toby Dickenson, Paul F. Dubois, Hauke Duden, Eric Earnst, Peter Eisentraut, Andrew Eland, Jeff Epler, Tom Epperly, Tamer Fahmy, Thibault Févry, Vickenty Fesunov, Hernan Martinez Foffani, Trent Gamblin, Stuart D. Gathman, Martin Geisler, Ajit George, Dirk Geschke, Frank Gibbons, Johannes Gijsbers, Christian Glass, Gus Gollings, Philipp Gortan, Dan Grassi, Robin Green, Jason Grout, Charles Groves, Engelbert Gruber, Bruce Guenter, Tamás Gulácsi, Satchidanand Haridas, Sebastian Harl, Ralf Hemmecke, Juergen Hermann, Tobias Herp, Uwe Hoffmann, Alex Holkner, Tobias Hunger, Werner Hunger, Simon Hyde, Paul Jimenez, Christophe Kalt, Timo Kankare, Brian Kelley, James Kew, Sheila King, Michael Klatt, Bastian Kleineidam, Axel Kollmorgen, Cédric Krier, John Kristensen, Detlef Lannert, Andrey Lebedev, Henrik Levkowetz, David Linke, Martin v. Löwis, Fredrik Lundh, Jochen Maes, Will Maier, Ksenia Marasanova, Georges Martin, Gordon McMillan, Christof Meerwald, John F Meinel Jr, Roland Meister, Ezio Melotti, Ulrik Mikaelsson, John Mitchell, Ramiro Morales, Toni Mueller, Joseph Myers, Stefan Niederhauser, Truls E. Næss, Bryce L Nordgren, Patrick Ohly, "om", Luke Opperman, Anthony Pankov, Eddie Parker, Will Partain, Timo Paulssen, Benjamin Pollack, Peter Pöml, Ewout Prangsma, Marcus Priesch, Eric S. Raymond, Bernhard Reiter, Roy Rapoport, John P. Rouillard, Luke Ross, Jesse Ruderman, Ollie Rutherfurd, Toby Sargeant, Giuseppe Scelsi, Ralf Schlatterbeck, Gregor Schmid, Florian Schulze, Klamer Schutte, Dougal Scott, Stefan Seefeld, Jouni K Seppänen, Jeffrey P Shell, Dan Shidlovsky, Joel Shprentz, Terrel Shumway, Emil Sit, Alexander Smishlajev, Nathaniel Smith, Leonardo Soto, Maciej Starzyk, Heiko Stegmann, Kai Storbeck, Mitchell Surface, anatoly techtonik, Jon C. Thomason, Mike Thompson, Hubert Touvet, Michael Twomey, Joseph E. Trent, Karl Ulbrich, Martin Uzak, Darryl VanDorp, J Vickroy, Timothy J. Warren, Jakub Wilk, William (Wilk), Tue Wennerberg, Matt Wilbert, Chris Withers, David Wolever, Cheer Xiao, Milan Zamazal.