[qa] Use correct python index slices in example test
[qa] Use correct python index slices in example test

Github-Pull: #14215
Rebased-From: 9dcb6763fb6851df6572e75278a41029fbfe8809

guncoin/guncoin,lbryio/lbrycrd,lbryio/lbrycrd,BTCGPU/BTCGPU,vmp32k/litecoin,BTCGPU/BTCGPU,GroestlCoin/bitcoin,ahmedbodi/vertcoin,guncoin/guncoin,ahmedbodi/vertcoin,qtumproject/qtum,ahmedbodi/vertcoin,GroestlCoin/GroestlCoin,vmp32k/litecoin,vmp32k/litecoin,lbryio/lbrycrd,h4x3rotab/BTCGPU,digibyte/digibyte,gjhiggins/vcoincore,ahmedbodi/vertcoin,GroestlCoin/GroestlCoin,digibyte/digibyte,lbryio/lbrycrd,gjhiggins/vcoincore,gjhiggins/vcoincore,qtumproject/qtum,vertcoin/vertcoin,qtumproject/qtum,guncoin/guncoin,vmp32k/litecoin,BTCGPU/BTCGPU,ahmedbodi/vertcoin,guncoin/guncoin,digibyte/digibyte,thrasher-/litecoin,GroestlCoin/bitcoin,digibyte/digibyte,GroestlCoin/GroestlCoin,vertcoin/vertcoin,GroestlCoin/bitcoin,BTCGPU/BTCGPU,vertcoin/vertcoin,gjhiggins/vcoincore,h4x3rotab/BTCGPU,thrasher-/litecoin,qtumproject/qtum,h4x3rotab/BTCGPU,lbryio/lbrycrd,GroestlCoin/bitcoin,h4x3rotab/BTCGPU,gjhiggins/vcoincore,digibyte/digibyte,GroestlCoin/GroestlCoin,qtumproject/qtum,thrasher-/litecoin,h4x3rotab/BTCGPU,GroestlCoin/GroestlCoin,qtumproject/qtum,BTCGPU/BTCGPU,lbryio/lbrycrd,vmp32k/litecoin,vmp32k/litecoin,thrasher-/litecoin,GroestlCoin/bitcoin,thrasher-/litecoin,gjhiggins/vcoincore,vertcoin/vertcoin,qtumproject/qtum,BTCGPU/BTCGPU,vertcoin/vertcoin,guncoin/guncoin,GroestlCoin/bitcoin,GroestlCoin/GroestlCoin,vertcoin/vertcoin,guncoin/guncoin,thrasher-/litecoin,digibyte/digibyte,lbryio/lbrycrd,ahmedbodi/vertcoin,h4x3rotab/BTCGPU