move fft and signal files, move signal APIs (#36540)

* move signal apis * move fft.py and signal.py to paddle/, fix typos * fix relative imports from fft.py and signal.py * fix typos
PaddlePaddle · Oct 26, 2021 · 81e0c1b · 81e0c1b
1 parent 21bece3
commit 81e0c1b
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diff --git a/python/paddle/__init__.py b/python/paddle/__init__.py
@@ -296,6 +296,7 @@
 from . import hub  # noqa: F401
 from . import linalg  # noqa: F401
 from . import fft  # noqa: F401
+from . import signal  # noqa: F401
 
 import paddle.text  # noqa: F401
 import paddle.vision  # noqa: F401