Traceback (most recent call last):


 "C:\Users\mchivers\AppData\Local\Continuum\Anaconda3\lib\site-packages\IPython\core\interactiveshell.py", line 2881, in run_code

exec(code_obj, self.user_global_ns, self.user_ns)


 "<ipython-input-6-ba00dea82129>", line 1, in <module>

pd.to_datetime(1, unit='D', origin=datetime(2000, 1, 1, tzinfo=timezone.utc))


 "C:\Users\mchivers\AppData\Local\Continuum\Anaconda3\lib\site-packages\pandas\core\tools\datetimes.py", line 487, in to_datetime

offset = tslib.Timestamp(origin) - tslib.Timestamp(0)


 "pandas\_libs\tslib.pyx", line 1244, in pandas._libs.tslib._Timestamp.__sub__ (pandas\_libs\tslib.c:23487)
TypeError: Timestamp subtraction must have the same timezones or no timezones

Traceback (most recent call last):


 "/Users/trnhgquan/vyper-venv/bin/vyper", line 8, in <module>

sys.exit(_parse_cli_args())


 "/Users/trnhgquan/vyper-venv/lib/python3.6/site-packages/vyper/cli/vyper_compile.py", line 57, in _parse_cli_args

return _parse_args(sys.argv[1:])


 "/Users/trnhgquan/vyper-venv/lib/python3.6/site-packages/vyper/cli/vyper_compile.py", line 127, in _parse_args

args.show_gas_estimates


 "/Users/trnhgquan/vyper-venv/lib/python3.6/site-packages/vyper/cli/vyper_compile.py", line 241, in compile_files

interface_codes=get_interface_codes(root_path, contract_sources)


 "/Users/trnhgquan/vyper-venv/lib/python3.6/site-packages/vyper/compiler.py", line 333, in compile_codes

exc_handler(contract_name, exc)


 "/Users/trnhgquan/vyper-venv/lib/python3.6/site-packages/vyper/cli/vyper_compile.py", line 159, in exc_handler

raise exception


 "/Users/trnhgquan/vyper-venv/lib/python3.6/site-packages/vyper/compiler.py", line 329, in compile_codes

source_id=source_id


 "/Users/trnhgquan/vyper-venv/lib/python3.6/site-packages/vyper/compiler.py", line 225, in _mk_bytecode_output

return '0x' + __compile(code, interface_codes=interface_codes).hex()


 "/Users/trnhgquan/vyper-venv/lib/python3.6/site-packages/vyper/compiler.py", line 50, in __compile

runtime_only=kwargs.get('bytecode_runtime', False)


 "/Users/trnhgquan/vyper-venv/lib/python3.6/site-packages/vyper/parser/parser.py", line 203, in parse_tree_to_lll

o, otherfuncs, sigs, external_contracts, origcode, global_ctx, defaultfunc, runtime_only


 "/Users/trnhgquan/vyper-venv/lib/python3.6/site-packages/vyper/parser/parser.py", line 127, in parse_other_functions

parse_function(_def, {**{'self': sigs}, **external_contracts}, origcode, global_ctx)


 "/Users/trnhgquan/vyper-venv/lib/python3.6/site-packages/vyper/parser/function_definitions/parse_function.py", line 79, in parse_function

context=context,


 "/Users/trnhgquan/vyper-venv/lib/python3.6/site-packages/vyper/parser/function_definitions/parse_public_function.py", line 280, in parse_public_function

] + nonreentrant_post + [['stop']]


 "/Users/trnhgquan/vyper-venv/lib/python3.6/site-packages/vyper/parser/function_definitions/parse_public_function.py", line 278, in <listcomp>

for c


 "/Users/trnhgquan/vyper-venv/lib/python3.6/site-packages/vyper/parser/stmt.py", line 1013, in parse_body

return parse_stmt(code, context)


 "/Users/trnhgquan/vyper-venv/lib/python3.6/site-packages/vyper/parser/stmt.py", line 1007, in parse_stmt

return Stmt(stmt, context).lll_node


 "/Users/trnhgquan/vyper-venv/lib/python3.6/site-packages/vyper/parser/stmt.py", line 91, in __init__

self.lll_node = self.stmt_table[stmt_type]()


 "/Users/trnhgquan/vyper-venv/lib/python3.6/site-packages/vyper/parser/stmt.py", line 809, in parse_return

if not SizeLimits.in_bounds(self.context.return_type.typ, sub.value):


 "/Users/trnhgquan/vyper-venv/lib/python3.6/site-packages/vyper/utils.py", line 117, in in_bounds

return 0 <= value <= cls.MAX_UINT256
TypeError: '<=' not supported between instances of 'int' and 'str'
