diff --git a/.vscode/launch.json b/.vscode/launch.json
index 7850542..13711a1 100644
--- a/.vscode/launch.json
+++ b/.vscode/launch.json
@@ -10,7 +10,40 @@
             "request": "launch",
             "program": "${workspaceFolder}/file_merger.py",
             "args": [
-                "armel"
+                "-i",
+                "${workspaceFolder}\\dataset\\small_dataset",
+                "-f",
+                "${workspaceFolder}\\dataset\\output.txt"
+            ],
+            "console": "integratedTerminal",
+            "justMyCode": true
+        },
+        {
+            "name": "Python: Generate Fake Dataset",
+            "type": "python",
+            "request": "launch",
+            "program": "${workspaceFolder}/setup.py",
+            "args": [
+                "generate_fake_dataset",
+                "--num-files",
+                "5",
+                "--min-words-per-file",
+                "100",
+                "--max-words-per-file",
+                "500",
+                "--output-dir",
+                "dataset/small_dataset"
+            ],
+            "console": "integratedTerminal",
+            "justMyCode": true
+        },
+        {
+            "name": "Python: Coverage Report",
+            "type": "python",
+            "request": "launch",
+            "program": "${workspaceFolder}/setup.py",
+            "args": [
+                "coverage"
             ],
             "console": "integratedTerminal",
             "justMyCode": true
diff --git a/.vscode/settings.json b/.vscode/settings.json
index 958bfe7..bf833fa 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -9,5 +9,8 @@
     "python.testing.pytestEnabled": false,
     "python.testing.unittestEnabled": true,
     "python.linting.pylintEnabled": true,
-    "python.linting.enabled": true
+    "python.linting.enabled": true,
+    "python.formatting.autopep8Args": [
+        "--max-line-length=100"
+    ]
 }
\ No newline at end of file
diff --git a/__init__.py b/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/merge_files/mergers/async_.py b/merge_files/mergers/async_.py
index ba65f91..f635d3a 100644
--- a/merge_files/mergers/async_.py
+++ b/merge_files/mergers/async_.py
@@ -1,7 +1,7 @@
 import asyncio
 import shutil
 
-from .base import FileMerger
+from merge_files.mergers.base import FileMerger
 
 
 class AsyncFileMerger(FileMerger):
diff --git a/merge_files/mergers/basic.py b/merge_files/mergers/basic.py
index 2a34830..cd34257 100644
--- a/merge_files/mergers/basic.py
+++ b/merge_files/mergers/basic.py
@@ -1,4 +1,4 @@
-from .base import FileMerger
+from merge_files.mergers.base import FileMerger
 
 
 class BasicFileMerger(FileMerger):
diff --git a/merge_files/mergers/parallel.py b/merge_files/mergers/parallel.py
index 0b32107..83bccea 100644
--- a/merge_files/mergers/parallel.py
+++ b/merge_files/mergers/parallel.py
@@ -3,7 +3,7 @@
 import shutil
 from typing import List
 
-from .base import FileMerger
+from merge_files.mergers.base import FileMerger
 
 
 class ParallelFileMerger(FileMerger):
diff --git a/merge_files/utils.py b/merge_files/utils.py
index 696f031..7e79fb9 100644
--- a/merge_files/utils.py
+++ b/merge_files/utils.py
@@ -43,7 +43,7 @@ def check_valid_path(path: str) -> str:
                 ref.extractall(extract_path)
                 return extract_path
         except (zipfile.BadZipfile, tarfile.ReadError) as e:
-            raise ValueError(f"File could not be opened successfully: {e}")
+            raise ValueError(f"File could not be opened successfully:") from e
 
     # if the path is not a folder or a supported compressed file type, raise an exception
     raise ValueError(f"Please enter a valid path: {path}")
diff --git a/scripts/dataset.py b/scripts/dataset.py
index 1ff7fc0..336bcec 100644
--- a/scripts/dataset.py
+++ b/scripts/dataset.py
@@ -61,6 +61,7 @@ def generate_fake_dataset(num_files: int, min_words_per_file: int,
         output_file = os.path.join(output_dir, f'file_{i}.dat')
         with open(output_file, 'w') as f:
             f.write('\n'.join(words))
+    print("Fake dataset has been generated.")
 
 
 if __name__ == "__main__":