Use explicit "# type: str" instead of '' shortcut.

stdlib/2.7/os/path.pyi

@@ -9,14 +9,14 @@ from typing import overload, List, Any, Tuple, BinaryIO, TextIO, TypeVar, Callab
 # ----- os.path variables -----
 supports_unicode_filenames = False
 # aliases (also in os)
-curdir = ''
-pardir = ''
-sep = ''
-altsep = ''
-extsep = ''
-pathsep = ''
-defpath = ''
-devnull = ''
+curdir = ...  # type: str
+pardir = ...  # type: str
+sep = ...  # type: str
+altsep = ...  # type: str
+extsep = ...  # type: str
+pathsep = ...  # type: str
+defpath = ...  # type: str
+devnull = ...  # type: str
 
 # ----- os.path function stubs -----
 def abspath(path: AnyStr) -> AnyStr: ...

stdlib/2.7/string.pyi

@@ -4,18 +4,18 @@
 
 from typing import Mapping, Sequence, Any, Optional, Union, List, Tuple, Iterable, AnyStr
 
-ascii_letters = ''
-ascii_lowercase = ''
-ascii_uppercase = ''
-digits = ''
-hexdigits = ''
-letters = ''
-lowercase = ''
-octdigits = ''
-punctuation = ''
-printable = ''
-uppercase = ''
-whitespace = ''
+ascii_letters = ...  # type: str
+ascii_lowercase = ...  # type: str
+ascii_uppercase = ...  # type: str
+digits = ...  # type: str
+hexdigits = ...  # type: str
+letters = ...  # type: str
+lowercase = ...  # type: str
+octdigits = ...  # type: str
+punctuation = ...  # type: str
+printable = ...  # type: str
+uppercase = ...  # type: str
+whitespace = ...  # type: str
 
 def capwords(s: AnyStr, sep: AnyStr = None) -> AnyStr: ...
 # TODO: originally named 'from'
@@ -49,7 +49,7 @@ def replace(s: AnyStr, old: AnyStr, new: AnyStr, maxreplace: int = None) -> AnyS
 
 class Template(object):
     # TODO: Unicode support?
-    template = ''
+    template = ...  # type: str
 
     def __init__(self, template: str) -> None: ...
     def substitute(self, mapping: Mapping[str, str], **kwds: str) -> str: ...

stdlib/2.7/subprocess.pyi

@@ -26,8 +26,8 @@ STDOUT = ... # type: int
 
 class CalledProcessError(Exception):
     returncode = 0
-    cmd = ''
-    output = '' # May be None
+    cmd = ...  # type: str
+    output = ...  # type: str # May be None
 
     def __init__(self, returncode: int, cmd: str, output: str) -> None: ...
 

stdlib/2.7/tempfile.pyi

@@ -7,8 +7,8 @@
 from typing import Tuple, IO
 
 # global variables
-tempdir = ''
-template = ''
+tempdir = ...  # type: str
+template = ...  # type: str
 
 # TODO text files
 
@@ -26,7 +26,7 @@ def SpooledTemporaryFile(
     ...
 
 class TemporaryDirectory:
-    name = ''
+    name = ...  # type: str
     def __init__(self, suffix: str = '', prefix: str = 'tmp',
                  dir: str = None) -> None: ...
     def cleanup(self) -> None: ...

stdlib/2.7/threading.pyi

@@ -10,7 +10,7 @@ def currentThread() -> Thread: ...
 def enumerate() -> List[Thread]: ...
 
 class Thread(object):
-    name = ''
+    name = ...  # type: str
     ident = 0
     daemon = False
 

stdlib/2.7/urlparse.pyi

@@ -8,7 +8,7 @@ uses_params = []  # type: List[str]
 non_hierarchical = []  # type: List[str]
 uses_query = []  # type: List[str]
 uses_fragment = []  # type: List[str]
-scheme_chars = ''
+scheme_chars = ...  # type: str
 MAX_CACHE_SIZE = 0
 
 def clear_cache() -> None: ...