1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
|
import sys
from time import perf_counter as clock
import tables as tb
if len(sys.argv) != 3:
print("usage: %s source_file dest_file", sys.argv[0])
filesrc = sys.argv[1]
filedest = sys.argv[2]
filehsrc = tb.open_file(filesrc)
filehdest = tb.open_file(filedest, "w")
ntables = 0
tsize = 0
t1 = clock()
for group in filehsrc.walk_groups():
if isinstance(group._v_parent, tb.File):
groupdest = filehdest.root
else:
pathname = group._v_parent._v_pathname
groupdest = filehdest.create_group(
pathname, group._v_name, title=group._v_title
)
for table in filehsrc.list_nodes(group, classname="Table"):
print("copying table -->", table)
table.copy(groupdest, table.name)
ntables += 1
tsize += table.nrows * table.rowsize
tsize_mb = tsize / (1024 * 1024)
ttime = clock() - t1
print(
f"Copied {ntables} tables for a total of {tsize_mb:.1f} MB"
f" in {ttime:.3f} seconds ({tsize_mb / ttime:.1f} MB/s)"
)
filehsrc.close()
filehdest.close()
|
