Compatibility with Pandas 2.0+

[DannyCollinson]

As of Pandas version 2.0, the append() method for DataFrames is deprecated, causing problems loading negative samples.

To Reproduce
With pandas version 2.0+ installed,

from tdc.multi_pred import MTI
data = MTI(name = 'miRTarBase')
data = data.neg_sample(frac = 1)

causes
AttributeError: 'DataFrame' object has no attribute 'append'

To Fix
For now, you can run neg_sample() with pandas 1.5.3 or below, but compatibility with Pandas version 2.0+ will require replacing df.append() calls with calls to pd.concat().

[kexinhuang12345]

Thanks for raising this issue! We will update the code in the next release!

[skywalker2202]

Hello, any updates for this issue?

[amva13]

@skywalker2202 have a look at package version >= 0.4.7 , feel free to also run from this gh repo in a conda environment using environment.yml