diff options
| -rw-r--r-- | numpy/lib/npyio.py | 3 | ||||
| -rw-r--r-- | numpy/lib/tests/test_format.py | 7 |
2 files changed, 9 insertions, 1 deletions
diff --git a/numpy/lib/npyio.py b/numpy/lib/npyio.py index 7788ac319..d8cfbf769 100644 --- a/numpy/lib/npyio.py +++ b/numpy/lib/npyio.py @@ -412,12 +412,13 @@ def load(file, mmap_mode=None, allow_pickle=True, fix_imports=True, try: # Code to distinguish from NumPy binary files and pickles. _ZIP_PREFIX = b'PK\x03\x04' + _ZIP_SUFFIX = b'PK\x05\x06' # empty zip files start with this N = len(format.MAGIC_PREFIX) magic = fid.read(N) # If the file size is less than N, we need to make sure not # to seek past the beginning of the file fid.seek(-min(N, len(magic)), 1) # back-up - if magic.startswith(_ZIP_PREFIX): + if magic.startswith(_ZIP_PREFIX) or magic.startswith(_ZIP_SUFFIX): # zip-file (assume .npz) # Transfer file ownership to NpzFile tmp = own_fid diff --git a/numpy/lib/tests/test_format.py b/numpy/lib/tests/test_format.py index fd227595a..c7869c582 100644 --- a/numpy/lib/tests/test_format.py +++ b/numpy/lib/tests/test_format.py @@ -852,3 +852,10 @@ def test_large_archive(): new_a = np.load(f)["arr"] assert_(a.shape == new_a.shape) + + +def test_empty_npz(): + # Test for gh-9989 + fname = os.path.join(tempdir, "nothing.npz") + np.savez(fname) + np.load(fname) |