remove unused vendored functions (#94)

Author: keewis

pint_xarray/formatting.py

@@ -3,17 +3,6 @@
 import numpy as np
 
 
-# vendored from xarray.core.formatting
-# https://github.com/pydata/xarray/blob/v0.16.0/xarray/core/formatting.py#L18-216
-def pretty_print(x, numchars: int):
-    """Given an object `x`, call `str(x)` and format the returned string so
-    that it is numchars long, padding with trailing spaces or truncating with
-    ellipses as necessary
-    """
-    s = maybe_truncate(x, numchars)
-    return s + " " * max(numchars - len(s), 0)
-
-
 # vendored from xarray.core.formatting
 def maybe_truncate(obj, maxlen=500):
     s = str(obj)
@@ -22,14 +11,6 @@ def maybe_truncate(obj, maxlen=500):
     return s
 
 
-# vendored from xarray.core.formatting
-def wrap_indent(text, start="", length=None):
-    if length is None:
-        length = len(start)
-    indent = "\n" + " " * length
-    return start + indent.join(x for x in text.splitlines())
-
-
 # vendored from xarray.core.formatting
 def _get_indexer_at_least_n_items(shape, n_desired, from_end):
     assert 0 < n_desired <= np.prod(shape)
@@ -80,17 +61,6 @@ def last_n_items(array, n_desired):
     return np.asarray(array).flat[-n_desired:]
 
 
-# vendored from xarray.core.formatting
-def last_item(array):
-    """Returns the last item of an array in a list or an empty list."""
-    if array.size == 0:
-        # work around for https://github.com/numpy/numpy/issues/5195
-        return []
-
-    indexer = (slice(-1, None),) * array.ndim
-    return np.ravel(np.asarray(array[indexer])).tolist()
-
-
 # based on xarray.core.formatting.format_item
 def format_item(x, quote_strings=True):
     """Returns a succinct summary of an object as a string"""