8000 MAINT: silence DeprecationWarning in np.safe_eval(). by rgommers · Pull Request #390 · numpy/numpy · GitHub
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MAINT: silence DeprecationWarning in np.safe_eval(). #390

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Merged
merged 1 commit into from
Aug 31, 2012
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MAINT: silence DeprecationWarning in np.safe_eval(). #390

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MAINT: silence DeprecationWarning in np.safe_eval(). 
It comes from the Python compiler package, which isn't available on Python 3.x.
We already handle that issue by instead importing the ast module.
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Ralf Gommers committed Aug 22, 2012
commit 132b373a3e50286534df73d07215c11d14d71dda
18 changes: 14 additions & 4 deletions numpy/lib/utils.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1136,11 +1136,21 @@ def safe_eval(source):
SyntaxError: Unsupported source construct: compiler.ast.CallFunc

"""
# Local import to speed up numpy's import time.
# Local imports to speed up numpy's import time.
import warnings
from numpy.testing.utils import WarningManager
warn_ctx = WarningManager()
warn_ctx.__enter__()
try:
import compiler
except ImportError:
import ast as compiler
# compiler package is deprecated for 3.x, which is already solved here
warnings.simplefilter('ignore', DeprecationWarning)
try:
import compiler
except ImportError:
import ast as compiler
finally:
warn_ctx.__exit__()

walker = SafeEval()
try:
ast = compiler.parse(source, mode="eval")
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