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禁止Pydda默认下载数据

news 来源：原创 2025/5/10 6:07:23

问题描述：

我在使用pydda库（2.0.0版本），运行官方示例时，数据我已经下载好放置本地，仅“import pydda”就会调用下载示例数据的程序，默认从github下载示例数据，由于网络问题，报错网络连接失败，导致程序无法正常运行。

解决方案：

找到安装pydda目录（conda目录\envs\pydda_3.9\Lib\site-packages\pydda，可替换为自己的目录），编辑__init__.py，注释掉“from . import tests”即可。

"""
========================================
PyDDA: Pythonic Direct Data Assimilation
========================================
"""from . import cost_functions
from . import retrieval
from . import vis
from . import initialization
# from . import tests    # 注释掉这行代码
from . import constraints
from . import io__version__ = "2.0.0"print("Welcome to PyDDA %s" % __version__)
print("If you are using PyDDA in your publications, please cite:")
print("Jackson et al. (2020) Journal of Open Research Science")
print("Detecting Jax...")
try:import jaximport jaxoptprint("Jax engine enabled!")
except ImportError:print("Jax/JaxOpt are not installed on your system, unable to use Jax engine.")print("Detecting TensorFlow...")
try:import tensorflowprint("TensorFlow detected. Checking for tensorflow-probability...")import tensorflow_probabilityprint("TensorFlow-probability detected. TensorFlow engine enabled!")
except (ImportError, AttributeError) as e:print("Unable to load both TensorFlow and tensorflow-probability. "+ "TensorFlow engine disabled.")print(e)