def __setitem__(self, index, val):
if isinstance(val, TextHeader):
self[index] = val[0]
return
if index > self.outer.ext_headers:
raise IndexError("Textual header {} not in file".format(index))
_segyio.write_textheader(self.outer.xfd, index, val)
def test_write_text_header(self):
fname = self.filename.replace("small", "txt_hdr_wrt")
shutil.copyfile(self.filename, fname)
f = _segyio.open(fname, "r+")
with self.assertRaises(ValueError):
_segyio.write_textheader(f, 0, "")
self.assertEqual(_segyio.read_textheader(f, 0), ACTUAL_TEXT_HEADER)
_segyio.write_textheader(f, 0, "yolo" * 800)
self.assertEqual(_segyio.read_textheader(f, 0), "yolo" * 800)
_segyio.close(f)
def test_write_text_header(self):
with TestContext("write_text_header") as context:
context.copy_file(self.filename)
f = _segyio.open("small.sgy", "r+")
with self.assertRaises(ValueError):
_segyio.write_textheader(f, 0, "")
self.assertEqual(_segyio.read_textheader(f, 0), self.ACTUAL_TEXT_HEADER)
_segyio.write_textheader(f, 0, "yolo" * 800)
textheader = _segyio.read_textheader(f, 0)
textheader = textheader.decode('ascii') # Because in Python 3.5 bytes are not comparable to strings
self.assertEqual(textheader, "yolo" * 800)
_segyio.close(f)
def test_write_text_header(self):
with TestContext("write_text_header") as context:
context.copy_file(self.filename)
f = _segyio.open("small.sgy", "r+")
_segyio.write_textheader(f, 0, "")
textheader = _segyio.read_textheader(f, 0)
textheader = textheader.decode('ascii')
self.assertEqual(textheader, "" * 3200)
_segyio.write_textheader(f, 0, "yolo" * 800)
textheader = _segyio.read_textheader(f, 0)
textheader = textheader.decode(
'ascii'
) # Because in Python 3.5 bytes are not comparable to strings
self.assertEqual(textheader, "yolo" * 800)
_segyio.close(f)
def __setitem__(inner, index, val):
if index > self.ext_headers:
raise IndexError("Textual header %d not in file" % index)
_segyio.write_textheader(self.xfd, index, val)
