0
When I run the code below, sending a BTC transaction to the blockchain (using blockcypher api) I get an Assertion Error. I am not sure what an Assertion error means.
Btw the address had only around 5000 satoshi left.... Link to api documentation
https://www.blockcypher.com/dev/bitcoin/#creating-transactions
Thanks


I'm voting to close this question as off-topic because it is about general programming, not bitcoin – Raghav Sood – 2018-08-13T21:55:37.543
1This error means the checksum in your private key is incorrect. – Pieter Wuille – 2018-08-13T22:45:40.970