[tests] fix flake8 warnings in zapwallettxes.py
[tests] fix flake8 warnings in zapwallettxes.py

Flowdalic/bitcoin,Gazer022/bitcoin,myriadcoin/myriadcoin,gjhiggins/vcoincore,bitcoin/bitcoin,Exgibichi/statusquo,h4x3rotab/BTCGPU,practicalswift/bitcoin,midnightmagic/bitcoin,bitcoin/bitcoin,DigitalPandacoin/pandacoin,fanquake/bitcoin,ryanofsky/bitcoin,1185/starwels,Rav3nPL/bitcoin,apoelstra/bitcoin,Xekyo/bitcoin,simonmulser/bitcoin,JeremyRubin/bitcoin,jmcorgan/bitcoin,jambolo/bitcoin,nikkitan/bitcoin,myriadteam/myriadcoin,Flowdalic/bitcoin,wellenreiter01/Feathercoin,Exgibichi/statusquo,EthanHeilman/bitcoin,Christewart/bitcoin,wangxinxi/litecoin,alecalve/bitcoin,paveljanik/bitcoin,tjps/bitcoin,sarielsaz/sarielsaz,JeremyRubin/bitcoin,Chancoin-core/CHANCOIN,instagibbs/bitcoin,lateminer/bitcoin,rawodb/bitcoin,RHavar/bitcoin,tecnovert/particl-core,globaltoken/globaltoken,dscotese/bitcoin,Kogser/bitcoin,simonmulser/bitcoin,MeshCollider/bitcoin,Rav3nPL/bitcoin,1185/starwels,viacoin/viacoin,bitcoinsSG/bitcoin,kazcw/bitcoin,prusnak/bitcoin,afk11/bitcoin,monacoinproject/monacoin,Christewart/bitcoin,FeatherCoin/Feathercoin,domob1812/huntercore,jmcorgan/bitcoin,RHavar/bitcoin,jamesob/bitcoin,myriadcoin/myriadcoin,romanornr/viacoin,jlopp/statoshi,pataquets/namecoin-core,untrustbank/litecoin,GroestlCoin/GroestlCoin,kazcw/bitcoin,donaloconnor/bitcoin,prusnak/bitcoin,GroestlCoin/GroestlCoin,GroestlCoin/GroestlCoin,maaku/bitcoin,StarbuckBG/BTCGPU,ElementsProject/elements,kallewoof/bitcoin,deeponion/deeponion,wellenreiter01/Feathercoin,AkioNak/bitcoin,x-kalux/bitcoin_WiG-B,trippysalmon/bitcoin,apoelstra/bitcoin,thrasher-/litecoin,fujicoin/fujicoin,mm-s/bitcoin,GroestlCoin/bitcoin,GlobalBoost/GlobalBoost,domob1812/bitcoin,nbenoit/bitcoin,bitbrazilcoin-project/bitbrazilcoin,sebrandon1/bitcoin,ahmedbodi/vertcoin,MazaCoin/maza,jtimon/bitcoin,sebrandon1/bitcoin,kallewoof/bitcoin,h4x3rotab/BTCGPU,sarielsaz/sarielsaz,fanquake/bitcoin,digibyte/digibyte,FeatherCoin/Feathercoin,kazcw/bitcoin,MarcoFalke/bitcoin,1185/starwels,BitzenyCoreDevelopers/bitzeny,destenson/bitcoin--bitcoin,randy-waterhouse/bitcoin,achow101/bitcoin,GroestlCoin/bitcoin,Theshadow4all/ShadowCoin,nbenoit/bitcoin,nbenoit/bitcoin,qtumproject/qtum,Gazer022/bitcoin,particl/particl-core,gmaxwell/bitcoin,MazaCoin/maza,gmaxwell/bitcoin,cryptoprojects/ultimateonlinecash,andreaskern/bitcoin,1185/starwels,anditto/bitcoin,starwels/starwels,ahmedbodi/vertcoin,pstratem/bitcoin,alecalve/bitcoin,gjhiggins/vcoincore,Bushstar/UFO-Project,bitcoin/bitcoin,wellenreiter01/Feathercoin,untrustbank/litecoin,fanquake/bitcoin,bitcoinknots/bitcoin,Friedbaumer/litecoin,pataquets/namecoin-core,sipsorcery/bitcoin,bitcoinknots/bitcoin,ppcoin/ppcoin,UFOCoins/ufo,alecalve/bitcoin,starwels/starwels,gjhiggins/vcoincore,JeremyRubin/bitcoin,namecoin/namecore,rnicoll/bitcoin,myriadcoin/myriadcoin,nbenoit/bitcoin,laudaa/bitcoin,namecoin/namecore,Kogser/bitcoin,sstone/bitcoin,OmniLayer/omnicore,mruddy/bitcoin,sstone/bitcoin,stamhe/bitcoin,jlopp/statoshi,wangxinxi/litecoin,globaltoken/globaltoken,ahmedbodi/vertcoin,peercoin/peercoin,sipsorcery/bitcoin,domob1812/huntercore,Jcing95/iop-hd,sarielsaz/sarielsaz,rnicoll/dogecoin,Bushstar/UFO-Project,OmniLayer/omnicore,Christewart/bitcoin,particl/particl-core,GlobalBoost/GlobalBoost,domob1812/huntercore,apoelstra/bitcoin,mruddy/bitcoin,yenliangl/bitcoin,mb300sd/bitcoin,CryptArc/bitcoin,MazaCoin/maza,achow101/bitcoin,GlobalBoost/GlobalBoost,bitcoinknots/bitcoin,randy-waterhouse/bitcoin,joshrabinowitz/bitcoin,peercoin/peercoin,jambolo/bitcoin,jtimon/bitcoin,jnewbery/bitcoin,h4x3rotab/BTCGPU,gmaxwell/bitcoin,MazaCoin/maza,rnicoll/dogecoin,particl/particl-core,vertcoin/vertcoin,kevcooper/bitcoin,BTCGPU/BTCGPU,qtumproject/qtum,myriadteam/myriadcoin,1185/starwels,domob1812/bitcoin,afk11/bitcoin,OmniLayer/omnicore,jlopp/statoshi,jambolo/bitcoin,domob1812/namecore,jamesob/bitcoin,Bushstar/UFO-Project,aspanta/bitcoin,GroestlCoin/GroestlCoin,vertcoin/vertcoin,Kogser/bitcoin,kallewoof/bitcoin,mruddy/bitcoin,shelvenzhou/BTCGPU,myriadcoin/myriadcoin,mm-s/bitcoin,BitzenyCoreDevelopers/bitzeny,Anfauglith/iop-hd,droark/bitcoin,brandonrobertz/namecoin-core,jonasschnelli/bitcoin,UFOCoins/ufo,donaloconnor/bitcoin,Bushstar/UFO-Project,bespike/litecoin,aspanta/bitcoin,viacoin/viacoin,joshrabinowitz/bitcoin,jnewbery/bitcoin,bitbrazilcoin-project/bitbrazilcoin,ahmedbodi/vertcoin,rnicoll/bitcoin,afk11/bitcoin,bitcoinsSG/bitcoin,stamhe/bitcoin,midnightmagic/bitcoin,digibyte/digibyte,Kogser/bitcoin,Kogser/bitcoin,sstone/bitcoin,ppcoin/ppcoin,wangxinxi/litecoin,destenson/bitcoin--bitcoin,DigitalPandacoin/pandacoin,jtimon/bitcoin,GlobalBoost/GlobalBoost,BTCGPU/BTCGPU,ryanofsky/bitcoin,jmcorgan/bitcoin,randy-waterhouse/bitcoin,GroestlCoin/bitcoin,StarbuckBG/BTCGPU,domob1812/namecore,brandonrobertz/namecoin-core,kazcw/bitcoin,untrustbank/litecoin,vertcoin/vertcoin,kallewoof/bitcoin,aspanta/bitcoin,maaku/bitcoin,n1bor/bitcoin,CryptArc/bitcoin,n1bor/bitcoin,spiritlinxl/BTCGPU,viacoin/viacoin,digibyte/digibyte,kevcooper/bitcoin,fujicoin/fujicoin,laudaa/bitcoin,achow101/bitcoin,Christewart/bitcoin,21E14/bitcoin,FeatherCoin/Feathercoin,tjps/bitcoin,21E14/bitcoin,particl/particl-core,trippysalmon/bitcoin,Bushstar/UFO-Project,jtimon/bitcoin,ElementsProject/elements,qtumproject/qtum,lateminer/bitcoin,donaloconnor/bitcoin,vmp32k/litecoin,practicalswift/bitcoin,monacoinproject/monacoin,rnicoll/bitcoin,DigitalPandacoin/pandacoin,shelvenzhou/BTCGPU,deeponion/deeponion,joshrabinowitz/bitcoin,domob1812/huntercore,rawodb/bitcoin,n1bor/bitcoin,JeremyRubin/bitcoin,21E14/bitcoin,cryptoprojects/ultimateonlinecash,midnightmagic/bitcoin,rawodb/bitcoin,mruddy/bitcoin,cryptoprojects/ultimateonlinecash,ajtowns/bitcoin,AkioNak/bitcoin,Anfauglith/iop-hd,starwels/starwels,jmcorgan/bitcoin,Anfauglith/iop-hd,lbryio/lbrycrd,nbenoit/bitcoin,mitchellcash/bitcoin,anditto/bitcoin,GroestlCoin/GroestlCoin,digibyte/digibyte,BitzenyCoreDevelopers/bitzeny,RHavar/bitcoin,rawodb/bitcoin,andreaskern/bitcoin,guncoin/guncoin,GroestlCoin/bitcoin,destenson/bitcoin--bitcoin,x-kalux/bitcoin_WiG-B,ppcoin/ppcoin,TheBlueMatt/bitcoin,AkioNak/bitcoin,Jcing95/iop-hd,monacoinproject/monacoin,brandonrobertz/namecoin-core,1185/starwels,afk11/bitcoin,cryptoprojects/ultimateonlinecash,ajtowns/bitcoin,jlopp/statoshi,EthanHeilman/bitcoin,domob1812/namecore,sipsorcery/bitcoin,droark/bitcoin,prusnak/bitcoin,bitcoinsSG/bitcoin,CryptArc/bitcoin,EthanHeilman/bitcoin,ajtowns/bitcoin,DigitalPandacoin/pandacoin,instagibbs/bitcoin,lbryio/lbrycrd,maaku/bitcoin,n1bor/bitcoin,deeponion/deeponion,MeshCollider/bitcoin,anditto/bitcoin,randy-waterhouse/bitcoin,StarbuckBG/BTCGPU,domob1812/huntercore,romanornr/viacoin,ericshawlinux/bitcoin,BTCGPU/BTCGPU,fanquake/bitcoin,r8921039/bitcoin,spiritlinxl/BTCGPU,mb300sd/bitcoin,aspanta/bitcoin,yenliangl/bitcoin,Jcing95/iop-hd,cryptoprojects/ultimateonlinecash,mm-s/bitcoin,yenliangl/bitcoin,qtumproject/qtum,droark/bitcoin,Exgibichi/statusquo,DigitalPandacoin/pandacoin,droark/bitcoin,jonasschnelli/bitcoin,alecalve/bitcoin,wellenreiter01/Feathercoin,thrasher-/litecoin,randy-waterhouse/bitcoin,sstone/bitcoin,afk11/bitcoin,tecnovert/particl-core,Chancoin-core/CHANCOIN,gjhiggins/vcoincore,vmp32k/litecoin,MarcoFalke/bitcoin,qtumproject/qtum,GlobalBoost/GlobalBoost,Theshadow4all/ShadowCoin,paveljanik/bitcoin,nikkitan/bitcoin,bitcoinsSG/bitcoin,jnewbery/bitcoin,deeponion/deeponion,digibyte/digibyte,ryanofsky/bitcoin,bitbrazilcoin-project/bitbrazilcoin,Chancoin-core/CHANCOIN,maaku/bitcoin,stamhe/bitcoin,paveljanik/bitcoin,pataquets/namecoin-core,mb300sd/bitcoin,Kogser/bitcoin,TheBlueMatt/bitcoin,guncoin/guncoin,BTCGPU/BTCGPU,Xekyo/bitcoin,practicalswift/bitcoin,stamhe/bitcoin,shelvenzhou/BTCGPU,domob1812/namecore,yenliangl/bitcoin,globaltoken/globaltoken,sstone/bitcoin,laudaa/bitcoin,JeremyRubin/bitcoin,CryptArc/bitcoin,spiritlinxl/BTCGPU,mm-s/bitcoin,paveljanik/bitcoin,starwels/starwels,lateminer/bitcoin,Sjors/bitcoin,trippysalmon/bitcoin,sstone/bitcoin,kallewoof/bitcoin,globaltoken/globaltoken,ahmedbodi/vertcoin,Kogser/bitcoin,ppcoin/ppcoin,FeatherCoin/Feathercoin,viacoin/viacoin,lbryio/lbrycrd,UFOCoins/ufo,TheBlueMatt/bitcoin,tjps/bitcoin,gmaxwell/bitcoin,x-kalux/bitcoin_WiG-B,jmcorgan/bitcoin,guncoin/guncoin,namecoin/namecoin-core,romanornr/viacoin,r8921039/bitcoin,StarbuckBG/BTCGPU,achow101/bitcoin,sipsorcery/bitcoin,apoelstra/bitcoin,sebrandon1/bitcoin,Jcing95/iop-hd,monacoinproject/monacoin,stamhe/bitcoin,Exgibichi/statusquo,sipsorcery/bitcoin,vmp32k/litecoin,peercoin/peercoin,mitchellcash/bitcoin,qtumproject/qtum,tjps/bitcoin,RHavar/bitcoin,pataquets/namecoin-core,litecoin-project/litecoin,viacoin/viacoin,aspanta/bitcoin,trippysalmon/bitcoin,StarbuckBG/BTCGPU,JeremyRubin/bitcoin,myriadteam/myriadcoin,cdecker/bitcoin,myriadteam/myriadcoin,MeshCollider/bitcoin,jtimon/bitcoin,Friedbaumer/litecoin,brandonrobertz/namecoin-core,Christewart/bitcoin,Friedbaumer/litecoin,namecoin/namecoin-core,Xekyo/bitcoin,rnicoll/dogecoin,bitcoinsSG/bitcoin,GroestlCoin/bitcoin,ElementsProject/elements,GroestlCoin/bitcoin,thrasher-/litecoin,Gazer022/bitcoin,mruddy/bitcoin,Kogser/bitcoin,tecnovert/particl-core,bitbrazilcoin-project/bitbrazilcoin,kallewoof/bitcoin,sebrandon1/bitcoin,UFOCoins/ufo,pstratem/bitcoin,sebrandon1/bitcoin,lbryio/lbrycrd,mb300sd/bitcoin,Chancoin-core/CHANCOIN,anditto/bitcoin,h4x3rotab/BTCGPU,joshrabinowitz/bitcoin,guncoin/guncoin,practicalswift/bitcoin,Sjors/bitcoin,destenson/bitcoin--bitcoin,joshrabinowitz/bitcoin,dscotese/bitcoin,namecoin/namecoin-core,donaloconnor/bitcoin,ryanofsky/bitcoin,nikkitan/bitcoin,myriadcoin/myriadcoin,brandonrobertz/namecoin-core,ElementsProject/elements,RHavar/bitcoin,shelvenzhou/BTCGPU,Jcing95/iop-hd,Xekyo/bitcoin,kevcooper/bitcoin,tjps/bitcoin,deeponion/deeponion,Kogser/bitcoin,fujicoin/fujicoin,deeponion/deeponion,alecalve/bitcoin,Sjors/bitcoin,Anfauglith/iop-hd,Xekyo/bitcoin,vertcoin/vertcoin,ajtowns/bitcoin,Theshadow4all/ShadowCoin,bitcoinknots/bitcoin,x-kalux/bitcoin_WiG-B,cdecker/bitcoin,bespike/litecoin,Jcing95/iop-hd,romanornr/viacoin,shelvenzhou/BTCGPU,untrustbank/litecoin,wellenreiter01/Feathercoin,BTCGPU/BTCGPU,nikkitan/bitcoin,trippysalmon/bitcoin,gjhiggins/vcoincore,bespike/litecoin,rnicoll/bitcoin,fanquake/bitcoin,kevcooper/bitcoin,thrasher-/litecoin,pstratem/bitcoin,shelvenzhou/BTCGPU,ericshawlinux/bitcoin,FeatherCoin/Feathercoin,prusnak/bitcoin,gmaxwell/bitcoin,midnightmagic/bitcoin,dscotese/bitcoin,cryptoprojects/ultimateonlinecash,viacoin/viacoin,ericshawlinux/bitcoin,prusnak/bitcoin,Rav3nPL/bitcoin,afk11/bitcoin,bitcoin/bitcoin,namecoin/namecore,brandonrobertz/namecoin-core,jonasschnelli/bitcoin,fanquake/bitcoin,globaltoken/globaltoken,Exgibichi/statusquo,cdecker/bitcoin,droark/bitcoin,Gazer022/bitcoin,r8921039/bitcoin,vertcoin/vertcoin,vmp32k/litecoin,domob1812/bitcoin,TheBlueMatt/bitcoin,sarielsaz/sarielsaz,MarcoFalke/bitcoin,simonmulser/bitcoin,jambolo/bitcoin,trippysalmon/bitcoin,MarcoFalke/bitcoin,achow101/bitcoin,paveljanik/bitcoin,midnightmagic/bitcoin,Chancoin-core/CHANCOIN,wangxinxi/litecoin,Flowdalic/bitcoin,AkioNak/bitcoin,AkioNak/bitcoin,nbenoit/bitcoin,nikkitan/bitcoin,ericshawlinux/bitcoin,kazcw/bitcoin,sarielsaz/sarielsaz,joshrabinowitz/bitcoin,ericshawlinux/bitcoin,OmniLayer/omnicore,romanornr/viacoin,GroestlCoin/GroestlCoin,rawodb/bitcoin,lbryio/lbrycrd,peercoin/peercoin,spiritlinxl/BTCGPU,Christewart/bitcoin,Rav3nPL/bitcoin,jamesob/bitcoin,mm-s/bitcoin,prusnak/bitcoin,instagibbs/bitcoin,BitzenyCoreDevelopers/bitzeny,jnewbery/bitcoin,h4x3rotab/BTCGPU,donaloconnor/bitcoin,21E14/bitcoin,Friedbaumer/litecoin,Bushstar/UFO-Project,gjhiggins/vcoincore,Rav3nPL/bitcoin,tecnovert/particl-core,randy-waterhouse/bitcoin,Theshadow4all/ShadowCoin,mruddy/bitcoin,Kogser/bitcoin,TheBlueMatt/bitcoin,globaltoken/globaltoken,UFOCoins/ufo,namecoin/namecoin-core,rnicoll/bitcoin,Exgibichi/statusquo,myriadcoin/myriadcoin,romanornr/viacoin,fujicoin/fujicoin,MeshCollider/bitcoin,GlobalBoost/GlobalBoost,bitcoin/bitcoin,litecoin-project/litecoin,dscotese/bitcoin,FeatherCoin/Feathercoin,Theshadow4all/ShadowCoin,domob1812/bitcoin,rawodb/bitcoin,Xekyo/bitcoin,MeshCollider/bitcoin,MeshCollider/bitcoin,ElementsProject/elements,domob1812/bitcoin,apoelstra/bitcoin,namecoin/namecoin-core,tecnovert/particl-core,starwels/starwels,namecoin/namecore,guncoin/guncoin,jonasschnelli/bitcoin,simonmulser/bitcoin,thrasher-/litecoin,simonmulser/bitcoin,namecoin/namecore,domob1812/huntercore,GlobalBoost/GlobalBoost,pataquets/namecoin-core,MarcoFalke/bitcoin,droark/bitcoin,Friedbaumer/litecoin,bespike/litecoin,bespike/litecoin,OmniLayer/omnicore,dscotese/bitcoin,kevcooper/bitcoin,laudaa/bitcoin,Anfauglith/iop-hd,Flowdalic/bitcoin,Flowdalic/bitcoin,qtumproject/qtum,guncoin/guncoin,Anfauglith/iop-hd,andreaskern/bitcoin,ahmedbodi/vertcoin,r8921039/bitcoin,cdecker/bitcoin,lateminer/bitcoin,jnewbery/bitcoin,practicalswift/bitcoin,pstratem/bitcoin,Kogser/bitcoin,UFOCoins/ufo,aspanta/bitcoin,CryptArc/bitcoin,r8921039/bitcoin,sarielsaz/sarielsaz,fujicoin/fujicoin,mitchellcash/bitcoin,ericshawlinux/bitcoin,digibyte/digibyte,bitcoin/bitcoin,kevcooper/bitcoin,rnicoll/dogecoin,laudaa/bitcoin,lateminer/bitcoin,RHavar/bitcoin,laudaa/bitcoin,mb300sd/bitcoin,bitcoinsSG/bitcoin,DigitalPandacoin/pandacoin,namecoin/namecore,simonmulser/bitcoin,Chancoin-core/CHANCOIN,stamhe/bitcoin,tecnovert/particl-core,nikkitan/bitcoin,bitcoinknots/bitcoin,lbryio/lbrycrd,practicalswift/bitcoin,Gazer022/bitcoin,spiritlinxl/BTCGPU,achow101/bitcoin,litecoin-project/litecoin,rnicoll/bitcoin,mitchellcash/bitcoin,jamesob/bitcoin,particl/particl-core,mb300sd/bitcoin,bespike/litecoin,domob1812/namecore,jtimon/bitcoin,wangxinxi/litecoin,ryanofsky/bitcoin,21E14/bitcoin,Sjors/bitcoin,andreaskern/bitcoin,tjps/bitcoin,yenliangl/bitcoin,namecoin/namecoin-core,n1bor/bitcoin,AkioNak/bitcoin,ElementsProject/elements,instagibbs/bitcoin,Flowdalic/bitcoin,jmcorgan/bitcoin,mitchellcash/bitcoin,fujicoin/fujicoin,alecalve/bitcoin,instagibbs/bitcoin,anditto/bitcoin,dscotese/bitcoin,Rav3nPL/bitcoin,sebrandon1/bitcoin,x-kalux/bitcoin_WiG-B,monacoinproject/monacoin,yenliangl/bitcoin,x-kalux/bitcoin_WiG-B,peercoin/peercoin,TheBlueMatt/bitcoin,bitbrazilcoin-project/bitbrazilcoin,jlopp/statoshi,untrustbank/litecoin,Kogser/bitcoin,n1bor/bitcoin,jamesob/bitcoin,OmniLayer/omnicore,EthanHeilman/bitcoin,litecoin-project/litecoin,myriadteam/myriadcoin,jlopp/statoshi,MazaCoin/maza,jonasschnelli/bitcoin,particl/particl-core,spiritlinxl/BTCGPU,h4x3rotab/BTCGPU,gmaxwell/bitcoin,andreaskern/bitcoin,starwels/starwels,domob1812/bitcoin,bitbrazilcoin-project/bitbrazilcoin,apoelstra/bitcoin,paveljanik/bitcoin,ajtowns/bitcoin,sipsorcery/bitcoin,r8921039/bitcoin,donaloconnor/bitcoin,vmp32k/litecoin,EthanHeilman/bitcoin,vmp32k/litecoin,domob1812/namecore,untrustbank/litecoin,instagibbs/bitcoin,kazcw/bitcoin,thrasher-/litecoin,pstratem/bitcoin,andreaskern/bitcoin,Gazer022/bitcoin,vertcoin/vertcoin,mm-s/bitcoin,wellenreiter01/Feathercoin,cdecker/bitcoin,maaku/bitcoin,destenson/bitcoin--bitcoin,jambolo/bitcoin,litecoin-project/litecoin,lateminer/bitcoin,mitchellcash/bitcoin,BitzenyCoreDevelopers/bitzeny,rnicoll/dogecoin,jamesob/bitcoin,ryanofsky/bitcoin,pataquets/namecoin-core,destenson/bitcoin--bitcoin,BTCGPU/BTCGPU,BitzenyCoreDevelopers/bitzeny,cdecker/bitcoin,CryptArc/bitcoin,21E14/bitcoin,litecoin-project/litecoin,midnightmagic/bitcoin,MarcoFalke/bitcoin,anditto/bitcoin,EthanHeilman/bitcoin,jambolo/bitcoin,MazaCoin/maza,monacoinproject/monacoin,pstratem/bitcoin,wangxinxi/litecoin,lbryio/lbrycrd,Friedbaumer/litecoin,maaku/bitcoin,Theshadow4all/ShadowCoin,ajtowns/bitcoin,StarbuckBG/BTCGPU,peercoin/peercoin,myriadteam/myriadcoin,Sjors/bitcoin