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-rw-r--r--isort/__init__.py2
-rw-r--r--isort/finders.py31
-rw-r--r--isort/isort.py33
-rw-r--r--isort/main.py2
-rw-r--r--isort/settings.py24
5 files changed, 64 insertions, 28 deletions
diff --git a/isort/__init__.py b/isort/__init__.py
index 3553b811..63034de6 100644
--- a/isort/__init__.py
+++ b/isort/__init__.py
@@ -22,4 +22,4 @@ OTHER DEALINGS IN THE SOFTWARE.
from . import settings # noqa: F401
from .isort import SortImports # noqa: F401
-__version__ = "4.3.8"
+__version__ = "4.3.9"
diff --git a/isort/finders.py b/isort/finders.py
index e21ef447..ccf6caac 100644
--- a/isort/finders.py
+++ b/isort/finders.py
@@ -8,6 +8,7 @@ import sys
import sysconfig
from abc import ABCMeta, abstractmethod
from fnmatch import fnmatch
+from functools import lru_cache
from glob import glob
from typing import Any, Dict, Iterable, Iterator, List, Mapping, Optional, Pattern, Sequence, Tuple, Type
@@ -34,7 +35,6 @@ try:
except ImportError:
Pipfile = None
-
KNOWN_SECTION_MAPPING = {
'STDLIB': 'STANDARD_LIBRARY',
'FUTURE': 'FUTURE_LIBRARY',
@@ -268,6 +268,13 @@ class RequirementsFinder(ReqsBaseFinder):
def _get_files_from_dir(self, path: str) -> Iterator[str]:
"""Return paths to requirements files from passed dir.
"""
+ return RequirementsFinder._get_files_from_dir_cached(path)
+
+ @classmethod
+ @lru_cache(maxsize=16)
+ def _get_files_from_dir_cached(cls, path):
+ results = []
+
for fname in os.listdir(path):
if 'requirements' not in fname:
continue
@@ -276,26 +283,38 @@ class RequirementsFinder(ReqsBaseFinder):
# *requirements*/*.{txt,in}
if os.path.isdir(full_path):
for subfile_name in os.listdir(path):
- for ext in self.exts:
+ for ext in cls.exts:
if subfile_name.endswith(ext):
- yield os.path.join(path, subfile_name)
+ results.append(os.path.join(path, subfile_name))
continue
# *requirements*.{txt,in}
if os.path.isfile(full_path):
- for ext in self.exts:
+ for ext in cls.exts:
if fname.endswith(ext):
- yield full_path
+ results.append(full_path)
break
+ return results
+
def _get_names(self, path: str) -> Iterator[str]:
"""Load required packages from path to requirements file
"""
+ for i in RequirementsFinder._get_names_cached(path):
+ yield i
+
+ @classmethod
+ @lru_cache(maxsize=16)
+ def _get_names_cached(cls, path: str) -> List[str]:
+ result = []
+
with chdir(os.path.dirname(path)):
requirements = parse_requirements(path, session=PipSession())
for req in requirements:
if req.name:
- yield req.name
+ result.append(req.name)
+
+ return result
class PipfileFinder(ReqsBaseFinder):
diff --git a/isort/isort.py b/isort/isort.py
index ca28d56d..44a1c9e3 100644
--- a/isort/isort.py
+++ b/isort/isort.py
@@ -283,13 +283,10 @@ class SortImports(object):
ignore_case: bool = False,
section_name: Optional[Any] = None
) -> str:
- dots = 0
- while module_name.startswith('.'):
- dots += 1
- module_name = module_name[1:]
-
- if dots:
- module_name = '{} {}'.format(('.' * dots), module_name)
+ match = re.match(r'^(\.+)\s*(.*)', module_name)
+ if match:
+ sep = ' ' if config['reverse_relative'] else '_'
+ module_name = sep.join(match.groups())
prefix = ""
if ignore_case:
@@ -558,7 +555,7 @@ class SortImports(object):
sections = ('no_sections', )
output = [] # type: List[str]
- prev_section_has_imports = False
+ pending_lines_before = False
for section in sections:
straight_modules = self.imports[section]['straight']
straight_modules = nsorted(straight_modules, key=lambda key: self._module_key(key, self.config, section_name=section))
@@ -591,8 +588,11 @@ class SortImports(object):
line = line.lower()
return '{0}{1}'.format(section, line)
section_output = nsorted(section_output, key=by_module)
+
+ section_name = section
+ no_lines_before = section_name in self.config['no_lines_before']
+
if section_output:
- section_name = section
if section_name in self.place_imports:
self.place_imports[section_name] = section_output
continue
@@ -602,11 +602,16 @@ class SortImports(object):
section_comment = "# {0}".format(section_title)
if section_comment not in self.out_lines[0:1] and section_comment not in self.in_lines[0:1]:
section_output.insert(0, section_comment)
- if prev_section_has_imports and section_name in self.config['no_lines_before']:
- while output and output[-1].strip() == '':
- output.pop()
- output += section_output + ([''] * self.config['lines_between_sections'])
- prev_section_has_imports = bool(section_output)
+
+ if pending_lines_before or not no_lines_before:
+ output += ([''] * self.config['lines_between_sections'])
+
+ output += section_output
+
+ pending_lines_before = False
+ else:
+ pending_lines_before = pending_lines_before or not no_lines_before
+
while output and output[-1].strip() == '':
output.pop()
while output and output[0].strip() == '':
diff --git a/isort/main.py b/isort/main.py
index a2d4b935..80dbc712 100644
--- a/isort/main.py
+++ b/isort/main.py
@@ -253,6 +253,8 @@ def parse_args(argv: Optional[Sequence[str]] = None) -> Dict[str, Any]:
parser.add_argument('-r', dest='ambiguous_r_flag', action='store_true')
parser.add_argument('-rm', '--remove-import', dest='remove_imports', action='append',
help='Removes the specified import from all files.')
+ parser.add_argument('-rr', '--reverse-relative', dest='reverse_relative', action='store_true',
+ help='Reverse order of relative imports.')
parser.add_argument('-rc', '--recursive', dest='recursive', action='store_true',
help='Recursively look for Python files of which to sort imports')
parser.add_argument('-s', '--skip', help='Files that sort imports should skip over. If you want to skip multiple '
diff --git a/isort/settings.py b/isort/settings.py
index c1d17802..3dbadd15 100644
--- a/isort/settings.py
+++ b/isort/settings.py
@@ -28,11 +28,10 @@ import fnmatch
import os
import posixpath
import re
-import stat
import warnings
from distutils.util import strtobool
from functools import lru_cache
-from typing import Any, Dict, Iterable, List, Mapping, MutableMapping, Type
+from typing import Any, Dict, Iterable, List, Mapping, MutableMapping, Callable
from .utils import difference, union
@@ -68,7 +67,7 @@ class WrapModes(enum.Enum):
@staticmethod
def from_string(value: str) -> 'WrapModes':
- return WrapModes(int(value))
+ return getattr(WrapModes, value, None) or WrapModes(int(value))
# Note that none of these lists must be complete as they are simply fallbacks for when included auto-detection fails.
@@ -135,6 +134,7 @@ default = {'force_to_top': [],
'length_sort': False,
'add_imports': [],
'remove_imports': [],
+ 'reverse_relative': False,
'force_single_line': False,
'default_section': 'FIRSTPARTY',
'import_heading_future': '',
@@ -216,6 +216,13 @@ def _update_settings_with_config(
_update_with_config_file(editor_config_file, sections, computed_settings)
+def _get_str_to_type_converter(setting_name: str) -> Callable[[str], Any]:
+ type_converter = type(default.get(setting_name, '')) # type: Callable[[str], Any]
+ if type_converter == WrapModes:
+ type_converter = WrapModes.from_string
+ return type_converter
+
+
def _update_with_config_file(
file_path: str,
sections: Iterable[str],
@@ -243,7 +250,7 @@ def _update_with_config_file(
for key, value in settings.items():
access_key = key.replace('not_', '').lower()
- existing_value_type = type(default.get(access_key, '')) # type: Type[Any]
+ existing_value_type = _get_str_to_type_converter(access_key)
if existing_value_type in (list, tuple):
# sections has fixed order values; no adding or substraction from any set
if access_key == 'sections':
@@ -271,7 +278,7 @@ def _update_with_config_file(
result = default.get(access_key) if value.lower().strip() == 'false' else 2
computed_settings[access_key] = result
else:
- computed_settings[access_key] = existing_value_type(value)
+ computed_settings[access_key] = getattr(existing_value_type, str(value), None) or existing_value_type(value)
def _as_list(value: str) -> List[str]:
@@ -337,7 +344,10 @@ def should_skip(
path: str = '/'
) -> bool:
"""Returns True if the file should be skipped based on the passed in settings."""
- normalized_path = posixpath.join(path.replace('\\', '/'), filename)
+ os_path = os.path.join(path, filename)
+ normalized_path = os_path.replace('\\', '/')
+ if normalized_path[1:2] == ':':
+ normalized_path = normalized_path[2:]
if config['safety_excludes'] and safety_exclude_re.search(normalized_path):
return True
@@ -356,7 +366,7 @@ def should_skip(
if fnmatch.fnmatch(filename, glob):
return True
- if stat.S_ISFIFO(os.stat(normalized_path).st_mode):
+ if not (os.path.isfile(os_path) or os.path.isdir(os_path) or os.path.islink(os_path)):
return True
return False