Feature/ftp download (#51)

* add ftp_download_file.py

* Add help to README.md

* Add ehnydeel to README.md as contributer

* Change order of FTP-Download in README.md

README.md

@@ -91,6 +91,17 @@ Useful for phones which might hide files in FileExplorer, but allow use as flash
 Directly prints results if run directly.
 May also be imported, yielding results one by one.
 
+* ### FTP Download File
+A simple application to download a file via FTP with the given remote and local path
+Parameters:
+ * -hh hostname
+ * -u  username
+ * -p  password
+ * -rd remote directory
+ * -ld local directory
+```bash
+python ftp_download_file.py
+```
 
 * ### Handy offline dictionary
 A tiny offline dictionary app based on nltk wordnet and pyqt5
@@ -192,7 +203,6 @@ python client.py
 python server.py
 ```
 
-
 * ### Video-downloader v1.1
 
 ### About
@@ -304,5 +314,6 @@ The following people helped in creating the above content.
 * <a href="https://github.com/apuayush" target="_blank">Apurva Nitanjay</a>
 * <a href="https://github.com/SuryaThiru" target="_blank">Surya K</a>
 * <a href="https://github.com/szepnapot" target="_blank">Peter L.</a>
+* <a href="https://github.com/ehnydeel" target="_blank">Andreas K.</a>
 
 ### If you like the project give a star  [<img src="Selection_008.png" alt="Star button" align="top">](https://github.com/Logan1x/Python-Scripts/stargazers)

bin/ftp_download_file.py

@@ -0,0 +1,49 @@
+import argparse
+import os
+from ftplib import FTP
+
+def parse_args():
+    ''' parse and check command line arguments '''
+    ap = argparse.ArgumentParser(description="FTP Utility")
+    ap.add_argument('-hh', dest='host', help="Host name")
+    ap.add_argument('-u', dest='username', help="user name")
+    ap.add_argument('-p', dest='password', help="user password")
+    ap.add_argument('-rd', dest='remote_dir', help="Path to remote directory")
+    ap.add_argument('-ld', dest='local_dir', help="Path to local directory")
+    ap.add_argument(dest='files', help="File names", nargs='+')
+    return ap.parse_args()
+
+def is_empty(file):
+	file_size = os.stat(file).st_size
+	if file_size == 0:
+		print('The file {} is empty'.format(file))
+		return True
+	return False
+
+
+args=parse_args()
+
+host = args.host
+username = args.username
+password = args.password
+remote_dir = args.remote_dir
+local_dir = args.local_dir
+files = args.files
+
+ftp = FTP(host)
+ftp.login(username, password)
+ftp.cwd(remote_dir)
+
+for file in files:
+	try:
+		local_filename = os.path.join(local_dir, file)
+		print('Getting filename: ' + file)
+		ftp.retrbinary('RETR %s' % file, open(local_filename, 'wb').write)
+		print('Saving at %s' % local_filename)
+	except Exception as err:
+		print(err)
+		if (is_empty(local_filename)):
+			os.remove(local_filename)
+		continue
+
+ftp.quit()