Alibaba Cloud Darabonba String Library

0.0.4 · active · verified Fri Apr 17

The alibabacloud-darabonba-string library provides a collection of string utility functions for Python, designed to be used within the Alibaba Cloud Darabonba framework. It offers functionalities like byte length calculation, type checking, and string conversions. The current version is 0.0.4. As part of the Darabonba ecosystem, it follows an active release cadence, often aligned with broader Alibaba Cloud SDK updates.

Common errors

```
AttributeError: 'Client' object has no attribute 'byte_len'
```
cause You are attempting to call a static method on an *instance* of the `Client` class, but all methods are designed to be called directly on the class itself.

fix Remove the instantiation parentheses. Use `Client.byte_len('some_string')` instead of `Client().byte_len('some_string')`.
```
ModuleNotFoundError: No module named 'alibabacloud_darabonba_string'
```
cause The `alibabacloud-darabonba-string` package is either not installed in your current Python environment, or there is a typo in the import statement.

fix Ensure the package is installed by running `pip install alibabacloud-darabonba-string`. Verify your virtual environment is active if applicable.
```
TypeError: argument of type 'int' is not iterable
```
cause You passed a non-string type (like an integer or list) to a utility method that expects a string argument.

fix Ensure that the arguments passed to string utility methods are indeed strings. Use `Client.to_string()` to explicitly convert non-string types if necessary, e.g., `Client.byte_len(Client.to_string(123))`.

Warnings

gotcha The `Client` class contains only static methods. Do not instantiate `Client()` as it will result in `AttributeError` when trying to call methods.
Fix: Call methods directly on the class, e.g., `Client.byte_len('string')` instead of `Client().byte_len('string')`.
gotcha Methods like `byte_len` are designed to work with UTF-8 encoding by default. If you are handling strings in different encodings, ensure you convert them appropriately before passing them to these utilities.
Fix: Explicitly encode your strings to UTF-8 or use Python's built-in string methods if specific encoding handling is required.
breaking As a library in early development (version 0.0.x), the API may not be stable. Expect potential breaking changes in minor releases (e.g., 0.1.0, 0.2.0) before a 1.0.0 release is achieved.
Fix: Pin your dependency to an exact version (`alibabacloud-darabonba-string==0.0.4`) and carefully review changelogs when upgrading.

Install

pip install alibabacloud-darabonba-string Install latest version

Imports

Client

from alibabacloud_darabonba_string.client import Client

Quickstart

This example demonstrates how to use `Client.byte_len` to get the UTF-8 byte length of strings, `Client.is_string` to check types, and `Client.to_string` for type conversion. All utility methods are static methods of the `Client` class.

from alibabacloud_darabonba_string.client import Client

# Calculate byte length of a string (UTF-8)
text_en = "Hello World"
byte_length_en = Client.byte_len(text_en)
print(f"'{(text_en)}' byte length (UTF-8): {byte_length_en}")

text_zh = "你好世界"
byte_length_zh = Client.byte_len(text_zh)
print(f"'{(text_zh)}' byte length (UTF-8): {byte_length_zh}")

# Check if a variable is a string
is_str_true = Client.is_string("test")
is_str_false = Client.is_string(123)
print(f"'test' is string: {is_str_true}")
print(f"123 is string: {is_str_false}")

# Convert to string
converted_num = Client.to_string(456)
print(f"Converted number to string: {converted_num}, type: {type(converted_num)}")

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