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author | F. Eugene Aumson <feuGeneA@users.noreply.github.com> | 2018-10-27 03:13:42 +0800 |
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committer | GitHub <noreply@github.com> | 2018-10-27 03:13:42 +0800 |
commit | af91a56a5594d07d7da6caaeff79f5a7fb31ff98 (patch) | |
tree | 03d76693036b6acd5e336aa5156e0f69b9fa3fe0 /python-packages/order_utils/src/zero_ex/dev_utils | |
parent | 0f6307169604f36b0316f236eb96d6001b788f50 (diff) | |
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feat(order_utils.py): ERC721 asset data codec (#1186)
Diffstat (limited to 'python-packages/order_utils/src/zero_ex/dev_utils')
-rw-r--r-- | python-packages/order_utils/src/zero_ex/dev_utils/type_assertions.py | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/python-packages/order_utils/src/zero_ex/dev_utils/type_assertions.py b/python-packages/order_utils/src/zero_ex/dev_utils/type_assertions.py index 745d014e6..a100da567 100644 --- a/python-packages/order_utils/src/zero_ex/dev_utils/type_assertions.py +++ b/python-packages/order_utils/src/zero_ex/dev_utils/type_assertions.py @@ -31,3 +31,18 @@ def assert_is_list(value: Any, name: str) -> None: f"expected variable '{name}', with value {str(value)}, to have" + f" type 'list', not '{type(value).__name__}'" ) + + +def assert_is_int(value: Any, name: str) -> None: + """If :param value: isn't of type int, raise a TypeError. + + >>> try: assert_is_int('asdf', 'var') + ... except TypeError as type_error: print(str(type_error)) + ... + expected variable 'var', with value asdf, to have type 'int', not 'str' + """ + if not isinstance(value, int): + raise TypeError( + f"expected variable '{name}', with value {str(value)}, to have" + + f" type 'int', not '{type(value).__name__}'" + ) |