Add lines_to_files.py.

lines_to_files.py

@@ -0,0 +1,35 @@
+import argparse
+import sys
+
+from voussoirkit import gentools
+from voussoirkit import pathclass
+
+def linestofiles(file, lines_per_file):
+    file = pathclass.Path(file)
+    basename = file.replace_extension('').basename
+    basename = basename + '_{index}'
+    folder = file.parent
+    handle = file.open('r', encoding='utf-8')
+    chunks = gentools.chunk_generator(handle, lines_per_file)
+    for (index, chunk) in enumerate(chunks):
+        chunk = ''.join(chunk)
+        chunk_file = folder.with_child(basename.format(index=index)).add_extension(file.extension)
+        print(chunk_file)
+        chunk_file.open('w', encoding='utf-8').write(chunk)
+    handle.close()
+
+def linestofiles_argparse(args):
+    return linestofiles(args.file, args.lines_per_file)
+
+def main(argv):
+    parser = argparse.ArgumentParser(description=__doc__)
+
+    parser.add_argument('file')
+    parser.add_argument('lines_per_file', type=int)
+    parser.set_defaults(func=linestofiles_argparse)
+
+    args = parser.parse_args(argv)
+    return args.func(args)
+
+if __name__ == '__main__':
+    raise SystemExit(main(sys.argv[1:]))