Update cheatsheets

black

@@ -0,0 +1,33 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# black
+
+> A Python auto code formatter.
+> More information: <https://black.readthedocs.io/en/stable/usage_and_configuration/the_basics.html>.
+
+- Auto-format a file or entire directory:
+
+`black {{path/to/file_or_directory}}`
+
+- Format the [c]ode passed in as a string:
+
+`black -c "{{code}}"`
+
+- Show whether a file or a directory would have changes made to them if they were to be formatted:
+
+`black --check {{path/to/file_or_directory}}`
+
+- Show changes that would be made to a file or a directory without performing them (dry-run):
+
+`black --diff {{path/to/file_or_directory}}`
+
+- Auto-format a file or directory, emitting exclusively error messages to `stderr`:
+
+`black --quiet {{path/to/file_or_directory}}`
+
+- Auto-format a file or directory without replacing single quotes with double quotes (adoption helper, avoid using this for new projects):
+
+`black --skip-string-normalization {{path/to/file_or_directory}}`