replace tostring deprecations

bench/blpk_vs_gzip.sh

@@ -14,7 +14,7 @@ python -c "
 import numpy
 a = numpy.linspace(0, 100, 2e7)
 with open('$testfile', 'w') as test_file:
-    test_file.write(a.tostring())
+    test_file.write(a.tobytes())
 "
 echo "$testfile is: $(get_fs $testfile)"
 

bloscpack/testutil.py

@@ -37,7 +37,7 @@ def create_array(repeats, in_file, progress=False):
 def create_array_fp(repeats, in_fp, progress=False):
     for i in range(repeats):
         array_ = np.linspace(i, i+1, int(2e6))
-        in_fp.write(array_.tostring())
+        in_fp.write(array_.tobytes())
         if progress:
             progress(i)
     in_fp.flush()

test/test_append.py

@@ -343,7 +343,7 @@ def test_append_mix_shuffle():
     # the linspace used in 'new' doesn't work anymore as of python-blosc 1.6.1
     to_append = np.zeros(int(2e6))
     to_append_fp = StringIO()
-    to_append_fp.write(to_append.tostring())
+    to_append_fp.write(to_append.tobytes())
     to_append_fp_size = to_append_fp.tell()
     to_append_fp.seek(0)
 
@@ -362,7 +362,7 @@ def test_append_mix_shuffle():
 
     # now sanity check the length and content of the decompressed
     assert len(dcmp_str) == len(new_str) + to_append_fp_size
-    assert dcmp_str == new_str + to_append.tostring()
+    assert dcmp_str == new_str + to_append.tobytes()
 
     # now get the first and the last chunk and check that the shuffle doesn't
     # match

test/test_file_io.py

@@ -244,7 +244,7 @@ def test_pack_unpack_fp():
 
 def test_pack_unpack_bytes_to_from_file():
     array_ = np.linspace(0, 1e5)
-    input_bytes = array_.tostring()
+    input_bytes = array_.tobytes()
     with create_tmp_files() as (tdir, in_file, out_file, dcmp_file):
         pack_bytes_to_file(input_bytes, out_file)
         output_bytes, _ = unpack_bytes_from_file(out_file)
@@ -253,7 +253,7 @@ def test_pack_unpack_bytes_to_from_file():
 
 def test_pack_unpack_bytes_bytes():
     a = np.linspace(0, 1e5)
-    b = a.tostring()
+    b = a.tobytes()
     c = pack_bytes_to_bytes(b)
     d, _ = unpack_bytes_from_bytes(c)
     assert b == d

test/test_headers.py

@@ -135,7 +135,7 @@ def test_decode_metadata_options_exceptions():
 
 
 def test_decode_blosc_header_basic():
-    array_ = np.linspace(0, 100, int(2e4)).tostring()
+    array_ = np.linspace(0, 100, int(2e4)).tobytes()
     blosc_args = BloscArgs()
     compressed = blosc.compress(array_, **blosc_args)
     header = decode_blosc_header(compressed)
@@ -165,7 +165,7 @@ def test_decode_blosc_header_deactivate_shuffle():
 
 def test_decode_blosc_header_uncompressible_data():
     array_ = np.asarray(np.random.randn(255),
-                        dtype=np.float32).tostring()
+                        dtype=np.float32).tobytes()
     blosc_args = BloscArgs()
     blosc_args.shuffle = True
     compressed = blosc.compress(array_, **blosc_args)
@@ -182,7 +182,7 @@ def test_decode_blosc_header_uncompressible_data():
 
 def test_decode_blosc_header_uncompressible_data_dont_split_false():
     array_ = np.asarray(np.random.randn(256),
-                        dtype=np.float32).tostring()
+                        dtype=np.float32).tobytes()
     blosc_args = BloscArgs()
     blosc_args.shuffle = True
     compressed = blosc.compress(array_, **blosc_args)

test/test_numpy_io.py

@@ -82,7 +82,7 @@ def test_conv():
 def test_unpack_exception():
     a = np.arange(50)
     sio = StringIO()
-    a_str = a.tostring()
+    a_str = a.tobytes()
     source = PlainFPSource(StringIO(a_str))
     sink = CompressedFPSink(sio)
     pack(source, sink, *calculate_nchunks(len(a_str)))