如何查看ms5837-python及ms5803库中的传感器可用函数？

It sounds like you’re working with Python packages (not single standalone modules) for these sensors, which is why dir() only shows generic package-level attributes instead of the actual sensor classes like MS5837_BA. Here are practical, reliable ways to uncover the available functions and classes in these libraries:

1. First, Locate the Package’s File Structure #

Start by finding where the library is installed on your system—this lets you peek at its internal code organization. Run this to get the package path:

import ms5837
print(ms5837.__path__)

Navigate to that directory, and you’ll find .py files (like ms5837.py or sensor.py) where the real sensor classes and functions live.

2. Import the Core Submodule Directly #

Packages often hide their core functionality in a submodule. Try importing it explicitly:

# For ms5837
from ms5837 import ms5837
dir(ms5837)  # This should now show MS5837_BA and other useful classes/functions

# For ms5803, use the same pattern (adjust if the submodule has a different name)
from ms5803 import ms5803
dir(ms5803)

If the submodule name isn’t obvious, check the package’s __init__.py file (in the directory you found earlier) to see what it imports or exposes to the top level.

3. Check the __all__ Attribute #

Well-structured packages define an __all__ list in their __init__.py to specify which items are meant to be exported. Check this with:

import ms5837
print(ms5837.__all__)

If this returns a list of names, you can import them directly (e.g., from ms5837 import MS5837_BA) or reference them once imported.

4. Filter Useful Members with the inspect Module #

The inspect module lets you skip over clutter (like dunder methods) and focus on actual classes and functions:

import inspect
import ms5837

# Use the submodule you imported in step 2 if needed, e.g., module = ms5837.ms5837
module = ms5837

# Get all classes in the module
classes = [item for item in inspect.getmembers(module) if inspect.isclass(item[1])]
print("Available classes:", classes)

# Get all functions
functions = [item for item in inspect.getmembers(module) if inspect.isfunction(item[1])]
print("Available functions:", functions)

5. Just Read the Source Code #

The most direct way is to open the module’s .py file (from the path you found in step 1) in a text editor. You’ll see full class definitions (like MS5837_BA) and their methods, which will tell you exactly what’s available for ms5803 too—look for a similar class naming pattern (e.g., MS5803_XX for the sensor variant).

内容的提问来源于stack exchange，提问作者Keir