| 15 | | 1. read-only globals that are never assigned to (THREAD-SAFE), |
| 16 | | 1. globals assigned to in a function by using the `global` keyword (NOT THREAD-SAFE), |
| 17 | | 1. global mutable data structures (lists and dictionaries, also instances) that are assigned to at module level but whose elements are modified in functions and that are accessed without using the `global` keyword (NOT THREAD-SAFE unless never modified). |
| 18 | | 1. globals that are initialized with module level code (PROBABLY THREAD-SAFE, although elementwise modification at module level is not thread-safe ''per se'', the module is most likely cached ''before'' threads get access to it) |
| | 15 | 1. globals that are assigned to at module level and never modified later (THREAD-SAFE), |
| | 16 | 1. globals that are assigned to at module level and whose elements are modified with module level code, but never modified later (PROBABLY THREAD-SAFE, although elementwise modification at module level is not thread-safe ''per se'', the module is most likely cached ''before'' threads get access to it) |
| | 17 | 1. global mutable data structures (lists and dictionaries, also instances) that are assigned to at module level but whose elements are modified in functions and that are accessed without using the `global` keyword (NOT THREAD-SAFE), |
| | 18 | 1. globals assigned to in functions by using the `global` keyword (NOT THREAD-SAFE), |