fixed multiprocessing

CHANGES

@@ -1,3 +1,6 @@
+## 2.0.4 (2019-01-30)
+- fixed split command line call: should now work on different linux versions
+
 ## 2.0.3 (2019-01-10)
 - fixed critical features bug, now empty or multiple features in config are possible
 

setup.py

@@ -5,7 +5,7 @@ def readme():
         return f.read()
 
 setup(name='uropa',
-      version='2.0.3',
+      version='2.0.4',
       description='UROPA is a command line based tool, intended for genomic region annotation',
       long_description=readme(),
       url='https://github.molgen.mpg.de/loosolab/UROPA',

uropa/uropa.py

@@ -95,7 +95,7 @@ def main():
 		"--version",
 		help="prints the version and exits",
 		action="version",
-		version="%(prog)s 2.0.3")
+		version="%(prog)s 2.0.4")
 	args = parser.parse_args()
 
 	config = args.input
@@ -278,13 +278,19 @@ def main():
 		logger.info("Multiprocessing: Peak file will be split in %s smaller files.", args.threads)
 		if not os.path.exists(spl_dir):
 			os.makedirs(spl_dir)
-		cmd = ['split',
-			   '-n l/' + str(args.threads),
-			   peaks_bed,
-			   spl_dir + 'spl_peak_']
-
+		chunks = args.threads - 1
+		#cmd = ['split',
+		#	   '-n l/' + str(args.threads),
+		#	   peaks_bed,
+		#	   spl_dir + 'spl_peak_']
+
+		cmd = ["split", "-l $(expr `wc", peaks_bed, 
+			"| cut -d ' ' -f3` /", str(chunks), ")", peaks_bed, spl_dir + 'spl_peak_'
+		]
+
 		try:
-			sp.check_call(cmd, stderr=open(os.devnull, 'w'))
+			#sp.check_call(cmd, stderr=open(os.devnull, 'w'))
+			os.system(str(" ".join(cmd)))
 		except sp.CalledProcessError:
 			args.threads = 1
 			logger.warning(