78214588d Use for-loop instead of list comprehension (practicalswift)
823979436 Use the variable name _ for unused return values (practicalswift)
2e6080bbf Remove unused variables and/or function calls (practicalswift)
9b94054b7 Avoid reference to undefined name: stderr does not exist, sys.stderr does (practicalswift)
51cb6b822 Use print(...) instead of undefined printf(...) (practicalswift)
25cd520fc Use sys.exit(...) instead of exit(...): exit(...) should not be used in programs (practicalswift)
Pull request description:
Python cleanups:
* Avoid reference to undefined name: `stderr` does not exist, `sys.stderr` does
* Use `print(...)` instead of undefined `printf(...)`
* Avoid redefinition of variable (`tx`) in list comprehension
* Remove unused variables and/or function calls
* Use `sys.exit(...)` instead of `exit(...)`: [`exit(...)` should not be used in programs](https://github.com/bitcoin/bitcoin/pull/10753#discussion_r125935027)
Tree-SHA512: 1238dfbc1d20f7edadea5e5406a589f293065638f6234809f0d5b6ba746dffe3d276bc5884c7af388a6c798c61a8759faaccf57f381225644754c0f61914eb4b
176c021 [qa] Test non-atomic chainstate writes (Suhas Daftuar)
d6af06d Dont create pcoinsTip until after ReplayBlocks. (Matt Corallo)
eaca1b7 Random db flush crash simulator (Pieter Wuille)
0580ee0 Adapt memory usage estimation for flushing (Pieter Wuille)
013a56a Non-atomic flushing using the blockchain as replay journal (Pieter Wuille)
b3a279c [MOVEONLY] Move LastCommonAncestor to chain (Pieter Wuille)
Tree-SHA512: 47ccc62303f9075c44d2a914be75bd6969ff881a857a2ff1227f05ec7def6f4c71c46680c5a28cb150c814999526797dc05cf2701fde1369c06169f46eccddee
* Merge #11881: Remove Python2 support
1874058 Make base58 python contrib code work with python3 (Evan Klitzke)
bc6fdf2 Change all python files to use Python3 (John Newbery)
Pull request description:
Following discussion here: https://github.com/bitcoin/bitcoin/pull/11843#issuecomment-351033742
It's easier for maintainers if all python tools/scripts support only a single version of Python. There are only a few scripts that aren't explicitly python3 at this point, so this PR changes those remaining scripts to explicitly require python3.
Tree-SHA512: 5d38eef6e0fc7d8515e23a1f4c75e8b4160fd0fe23cba52a1f41689b114e54a9e503e0724829e8b41982ef98f2d113df80d9e238213b74f09ceaed0344a19e24
* Merge #12829: Python3 fixup
f50975b [contrib] fixup symbol-check.py Python3 support (John Newbery)
5de2b18 [contrib] fixup security-check.py Python3 support (John Newbery)
Pull request description:
security-check.py and symbol-check.py were broken by #11881. Fix them.
Tree-SHA512: 86de3d6dc3292b1ae4cc04c2d7d7dbbf39c9270551d7b224b8d8b19e3184c30c897dbf823200403706d06bb405c0decad5cfd690cb2c0312992a235a4ffcf6bf