added more

read_all_user/main.py

@@ -0,0 +1,43 @@
+#!/usr/bin/env python3
+
+def read_file(path: str) -> "List of lines":
+    #f = open(path, 'r')
+    with open(path, 'r') as f:
+        # f.read(buflen) - binary read
+        # f.readline() - 1 Textzeile lesen -> str
+        # f.readlines - alle Textzeilen lesen ->str
+        # f ist gleichzeitig Iterator
+        # 1 möglichkeit
+        #lines = list(map(lambda s : s.rstrip(), f))
+        # 2 möflichkeit
+        lines = list(map(str.rstrip, f))
+    # 3 möglichkeit
+    #lines = []
+    # for line in f.readlines():
+    #    lines.append(line.rstrip())
+    # f.close()
+    return lines
+
+def build_userlist(lines) -> "List of user dicts":
+    result = []
+    for line in lines:
+        result.append(parse_passwd_lines(line))
+    return result
+
+def parse_passwd_lines(line: str) -> "Dict of passwd details":
+    parts = line.split(':')
+    userdict = {
+        "username": parts[0],
+        "uid": int(parts[2]),
+        "gid": int(parts[3]),
+        "realname": parts[4].split(',')[0],
+        "gecos": parts[4],
+        "home": parts[5],
+        "shell": parts[6]
+    }
+    return userdict
+
+
+test = read_file("/etc/passwd")
+userlist = [i['username'] for i in build_userlist(test)]
+print(userlist)