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[Storage] Fix #14054: 'NoneType' object has no attribute '__name__' #16993

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Merged
evelyn-ys merged 1 commit into from
Feb 22, 2021
Merged

[Storage] Fix #14054: 'NoneType' object has no attribute '__name__' #16993

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6 changes: 3 additions & 3 deletions src/azure-cli/azure/cli/command_modules/storage/sdkutil.py
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Original file line number Diff line number Diff line change
Expand Up @@ -25,9 +25,9 @@ def get_table_data_type(cli_ctx, module_name, *type_names):

def get_blob_service_by_type(cli_ctx, blob_type):
type_to_service = {
'block': lambda ctx: get_sdk(ctx, ResourceType.DATA_STORAGE, 'BlockBlobService', mod='blob'),
'page': lambda ctx: get_sdk(ctx, ResourceType.DATA_STORAGE, 'PageBlobService', mod='blob'),
'append': lambda ctx: get_sdk(ctx, ResourceType.DATA_STORAGE, 'AppendBlobService', mod='blob')
'block': lambda ctx: get_sdk(ctx, ResourceType.DATA_STORAGE, 'BlockBlobService', mod='blob', checked=False),
'page': lambda ctx: get_sdk(ctx, ResourceType.DATA_STORAGE, 'PageBlobService', mod='blob', checked=False),
'append': lambda ctx: get_sdk(ctx, ResourceType.DATA_STORAGE, 'AppendBlobService', mod='blob', checked=False)
Comment on lines +28 to +30

@jiasli jiasli Feb 19, 2021 •
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I would really prefer to make checked=False the default for get_sdk, otherwise it is not universal and 'NoneType' object has no attribute '__name__' will continue to happen in other command modules. (#15776 (comment))

@jiasli jiasli Feb 19, 2021 •
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I already made checked=False the default for _get_attr in #14690

azure-cli/src/azure-cli-core/azure/cli/core/profiles/_shared.py

Lines 534 to 535 in 301ba06

def _get_attr(sdk_path, mod_attr_path, checked=False):
"""If `checked` is True, None is returned in case of import failure."""

but it only applies to get_client_class which calls _get_attr without checked:

azure-cli/src/azure-cli-core/azure/cli/core/profiles/_shared.py

Lines 552 to 553 in 301ba06

def get_client_class(resource_type):
return _get_attr(resource_type.import_prefix, '#' + resource_type.client_name)

get_versioned_sdk will default checked to True via

azure-cli/src/azure-cli-core/azure/cli/core/profiles/_shared.py

Lines 573 to 574 in 301ba06

def get_versioned_sdk(api_profile, resource_type, *attr_args, **kwargs):
checked = kwargs.get('checked', True)

azure-cli/src/azure-cli-core/azure/cli/core/profiles/_shared.py

Line 585 in 301ba06

loaded_obj = _get_attr(sdk_path, mod_attr_path, checked)

@evelyn-ys evelyn-ys Feb 19, 2021 •
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Personally I totally agree with you. It's just I was afraid of making great changes to all modules. Should we discuss whether to change the behavior or not with all module owners?

@jiasli jiasli Feb 19, 2021

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We can go ahead and make the change. If CI passes, we are fine.

@jiasli jiasli Feb 19, 2021

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Python's import statement raises ImportError in case of non-existing module.

Also, checking whether the result is None is against the look before you leap practice.

}

try:
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