0.6.7: Fix pip installation problem and improve features & performance

- **BUGFIX**
  - fix `pip` installation problem due to incorrectly formatted
    version specifiers
  - update video duration extraction to correctly
    extract the duration of each video and avoid
    writing 'N/A'

- **FEATURE IMPROVEMENTS**
  - improve identification of seen videos in csv files by
    - avoiding potentially brittle regular expression matching
    - parsing each row of the csv file and extracting the
      (Video ID|Video URL) value from the corresponding column directly
  - normalize whitespace to avoid including newlines,
    carriage returns, and multiple consecutive whitespace characters
    in the video title
  - improve logging messages by including `time.time()` and
    `time.perf_counter()` when logging the time taken to perform
    an operation

- **PERFORMANCE IMPROVEMENTS**
  - increase write efficiency by completely avoiding writing to a
    temporary file when no new videos found for an existing file

- **INTERNAL IMPROVEMENT**
  - the following change does not affect the functionality of the program
    - add unit tests for the video title whitespace normalization

python/dev/__init__.py

@@ -13,7 +13,7 @@
 from .custom_logger import log, log_time_taken
 
 
-__version__              = '0.6.6'
+__version__              = '0.6.7'
 __email__                = 'yt.videos.list@gmail.com'
 
 

python/setup.py

@@ -11,7 +11,7 @@
 
 setup(
     name                          = 'yt_videos_list',
-    version                       = '0.6.6',
+    version                       = '0.6.7',
     description                   = 'YouTube bot to make a YouTube videos list (including all video titles and URLs uploaded by a channel) with end-to-end web scraping - no API tokens required. 🌟 Star this repo if you found it useful! 🌟',
     long_description              = long_description,
     long_description_content_type = 'text/markdown',

python/yt_videos_list/__init__.py

@@ -13,7 +13,7 @@
 from .custom_logger import log, log_time_taken
 
 
-__version__              = '0.6.6'
+__version__              = '0.6.7'
 __email__                = 'yt.videos.list@gmail.com'