Merge pull request xonsh#3983 from jnoortheen/upgrade-black-20.8b1

Upgrade black 20.8b1

news/use-black-20.8.rst

@@ -0,0 +1,23 @@
+**Added:**
+
+* <news item>
+
+**Changed:**
+
+* upgrade black formatter to version 20.8b1
+
+**Deprecated:**
+
+* <news item>
+
+**Removed:**
+
+* <news item>
+
+**Fixed:**
+
+* <news item>
+
+**Security:**
+
+* <news item>

requirements/tests.txt

@@ -8,6 +8,6 @@ prompt-toolkit>=3.0
 pygments>=2.2
 codecov
 coverage
-black==19.10b0 --pre
+black==20.8b1 --pre
 pre-commit
 mypy==0.790

xonsh/commands_cache.py

@@ -59,8 +59,8 @@ def is_empty(self):
     @staticmethod
     def get_possible_names(name):
         """Generates the possible `PATHEXT` extension variants of a given executable
-         name on Windows as a list, conserving the ordering in `PATHEXT`.
-         Returns a list as `name` being the only item in it on other platforms."""
+        name on Windows as a list, conserving the ordering in `PATHEXT`.
+        Returns a list as `name` being the only item in it on other platforms."""
         if ON_WINDOWS:
             pathext = builtins.__xonsh__.env.get("PATHEXT", [])
             name = name.upper()

xonsh/completers/bash_completion.py

@@ -115,7 +115,7 @@ def _get_bash_completions_source(paths=None):
 
 
 def _bash_get_sep():
-    """ Returns the appropriate filepath separator char depending on OS and
+    """Returns the appropriate filepath separator char depending on OS and
     xonsh options set
     """
     if platform.system() == "Windows":

xonsh/jobs.py

@@ -287,8 +287,7 @@ def print_one_job(num, outfile=sys.stdout):
 
 
 def get_next_job_number():
-    """Get the lowest available unique job number (for the next job created).
-    """
+    """Get the lowest available unique job number (for the next job created)."""
     _clear_dead_jobs()
     i = 1
     while i in builtins.__xonsh__.all_jobs:

xonsh/lib/collections.py

@@ -22,7 +22,7 @@ def __new__(cls):
 
 
 class ChainDB(ChainMap):
-    """ A ChainMap who's ``_getitem__`` returns either a ChainDB or
+    """A ChainMap who's ``_getitem__`` returns either a ChainDB or
     the result. The results resolve to the outermost mapping."""
 
     def __getitem__(self, key):

xonsh/lib/itertools.py

@@ -1,30 +1,30 @@
 def as_iterable(iterable_or_scalar):
     """Utility for converting an object to an iterable.
-   Parameters
-   ----------
-   iterable_or_scalar : anything
+    Parameters
+    ----------
+    iterable_or_scalar : anything
 
-   Returns
-   -------
-   l : iterable
-       If `obj` was None, return the empty tuple.
-       If `obj` was not iterable returns a 1-tuple containing `obj`.
-       Otherwise return `obj`
+    Returns
+    -------
+    l : iterable
+        If `obj` was None, return the empty tuple.
+        If `obj` was not iterable returns a 1-tuple containing `obj`.
+        Otherwise return `obj`
 
-   Notes
-   -----
-   Although string types are iterable in Python, we are treating them as not iterable in this
-   method.  Thus, as_iterable(string) returns (string, )
+    Notes
+    -----
+    Although string types are iterable in Python, we are treating them as not iterable in this
+    method.  Thus, as_iterable(string) returns (string, )
 
-   Examples
-   ---------
-   >>> as_iterable(1)
-   (1,)
-   >>> as_iterable([1, 2, 3])
-   [1, 2, 3]
-   >>> as_iterable("my string")
-   ("my string", )
-   """
+    Examples
+    ---------
+    >>> as_iterable(1)
+    (1,)
+    >>> as_iterable([1, 2, 3])
+    [1, 2, 3]
+    >>> as_iterable("my string")
+    ("my string", )
+    """
 
     if iterable_or_scalar is None:
         return ()