The with statement in Python sometimes causes confusion for novice and experienced Python programmers alike. This chapter explains in depth the idea behind the with statement as a context manager and its usage in concurrent and parallel programming, specifically regarding the use of locks while synchronizing threads. This chapter also provides specific examples of how the with statement is most commonly used.

The following topics will be covered in this chapter:

• The concept of context management and the options that the with statement provides as a context manager, specifically in concurrent and parallel programming
• The syntax of the with statement and how to use it effectively and efficiently
• The different ways of using the with statement in concurrent programming