small change in files

wincpy/checks/ae539110d03e49ea8738fd413ac44ba8.py

@@ -13,7 +13,7 @@ def check_clean_cache(student_module):
 
     cache_path, _ = __get_paths(student_module)
     student_module.clean_cache()
-    assert os.path.isdir(cache_path), f"`cache_path` did not create {cache_path}"
+    assert os.path.isdir(cache_path), f"The cache directory was not created properly."
 
     # Put some bogus file in it that should be gone after calling clean_cache()
     with open(os.path.join(cache_path, "throwaway"), "w") as fp:

wincpy/solutions/ae539110d03e49ea8738fd413ac44ba8/main.py

@@ -0,0 +1,91 @@
+# Do not modify these lines
+__winc_id__ = "ae539110d03e49ea8738fd413ac44ba8"
+__human_name__ = "files"
+
+# Add your code after this line
+
+import os
+import shutil
+from zipfile import ZipFile
+
+###
+# --- Make sure the imports are on the top of the file ---
+###
+
+base_path = os.getcwd()
+cache_path = os.path.join(base_path, "cache")
+data_path = os.path.join(base_path, "data.zip")
+"""
+Here we create the paths we use in the assignment as global variables, this way you only have to define them once.
+Create the paths using "getcwd()" and "join()" so the paths can be used on every computer and OS.
+"""
+
+# 1
+
+def clean_cache():
+    if os.path.exists(cache_path):
+        shutil.rmtree(cache_path)
+    os.mkdir(cache_path)
+
+###
+# If "cache" exists, delete the directory. Then make a new directory.
+###
+
+# 2
+
+def cache_zip(zip, cache):
+    with ZipFile(zip, "r") as zipObj:
+        zipObj.extractall(cache)
+
+###
+# Use the zipfile module to extract the zip file in a small amount of code.
+###
+
+# 3
+
+def cached_files():
+    cached_files_list = []
+    for path in os.listdir(cache_path):
+        full_path = os.path.join(cache_path, path)
+        cached_files_list.append(full_path)
+    return cached_files_list
+"""
+Here we do the following:
+    - Use listdir to loop over the name of every file. 
+    - Make the full path with "join()"
+    - Use "append()" to add the path to a predefined list
+    - return the list
+
+Note: We can also use a list comprehension as seen below. Read this as:
+        'do something for every value in list'
+"""
+def cached_files_alternative():
+    return [os.path.join(cache_path, path) for path in os.listdir(cache_path)]
+
+
+
+# 4
+
+def find_password(list_of_files):
+    for file in list_of_files:
+        with open(file) as f:
+            for line in f:
+                if "password" in line:
+                    split_line = line.split(" ", 1)
+                    return split_line[1].strip()
+"""
+Here we do the following:
+    - Loop over every file in a list of files
+    - Open the file in the iteration
+    - Loop over every line in the file
+    - if "password" is found in the line:
+        - split the line 
+        - return the password and strip off non-ascii characters
+"""
+
+# This block is only executed when run from "main", and not when imported.
+if __name__ == "__main__":
+    clean_cache()
+    cache_zip(data_path, cache_path)
+    cached_files()
+    print(find_password(cached_files()))