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
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
# Copyright (c) 2018, Science and Technology Facilities Council
# This software is distributed under a BSD licence. See LICENSE.txt.
"""
command_line
------------
Module for functions used as command line entry points.
The names of the corresponding command line scripts can be found in the
``entry_points`` section of ``setup.py``.
"""
# Import Python 3 features for future-proofing
from __future__ import (absolute_import, division, print_function,
unicode_literals)
import argparse
import mrcfile
def print_headers(names=None, print_file=None):
"""
Print the MRC header contents from a list of files.
This function opens files in permissive mode to allow headers of invalid
files to be examined.
Args:
names: A list of file names. If not given or :data:`None`, the names
are taken from the command line arguments.
print_file: The output text stream to use for printing the headers.
This is passed directly to the ``print_file`` argument of
:meth:`~mrcfile.mrcobject.MrcObject.print_header`. The default is
:data:`None`, which means output will be printed to
:data:`sys.stdout`.
"""
if names is None:
parser = argparse.ArgumentParser(
description="Print the MRC header contents from a list of files."
)
parser.add_argument("filename", nargs='*', help="Input MRC file")
args = parser.parse_args()
names = args.filename
for name in names:
with mrcfile.open(name, permissive=True, header_only=True) as mrc:
print("MRC header for {}:".format(name), file=print_file)
mrc.print_header(print_file=print_file)
|
