Add dramatically improved queued installation

news/3196.vendor.rst

@@ -0,0 +1 @@
+Updated ``requirementslib`` to aid in resolution of local and remote archives.

news/d65e7c90-3e70-40ba-8242-1e6ed18fc2fe.feature.rst

@@ -0,0 +1 @@
+Improved asynchronous installation and error handling via queued subprocess paralleization.

pipenv/__init__.py

@@ -10,7 +10,7 @@
 
 from .__version__ import __version__
 
-PIPENV_ROOT = os.path.dirname(os.path.realpath(__file__))
+PIPENV_ROOT = os.path.abspath(os.path.dirname(os.path.realpath(__file__)))
 PIPENV_VENDOR = os.sep.join([PIPENV_ROOT, "vendor"])
 PIPENV_PATCHED = os.sep.join([PIPENV_ROOT, "patched"])
 # Inject vendored directory into system path.
@@ -27,11 +27,15 @@
 if sys.version_info >= (3, 1) and sys.version_info <= (3, 6):
     if sys.stdout.isatty() and sys.stderr.isatty():
         import io
-        sys.stdout = io.TextIOWrapper(sys.stdout.buffer, encoding='utf8')
-        sys.stderr = io.TextIOWrapper(sys.stderr.buffer, encoding='utf8')
+        import atexit
+        stdout_wrapper = io.TextIOWrapper(sys.stdout.buffer, encoding='utf8')
+        atexit.register(stdout_wrapper.close)
+        stderr_wrapper = io.TextIOWrapper(sys.stderr.buffer, encoding='utf8')
+        atexit.register(stderr_wrapper.close)
+        sys.stdout = stdout_wrapper
+        sys.stderr = stderr_wrapper
 
 os.environ["PIP_DISABLE_PIP_VERSION_CHECK"] = fs_str("1")
-os.environ["PIP_SHIMS_BASE_MODULE"] = fs_str("pipenv.patched.notpip")
 
 # Hack to make things work better.
 try:

pipenv/_compat.py

@@ -382,7 +382,7 @@ def decode_output(output):
     except (AttributeError, UnicodeDecodeError, UnicodeEncodeError):
         if six.PY2:
             output = unicode.translate(vistir.misc.to_text(output),
-                                            UNICODE_TO_ASCII_TRANSLATION_MAP)
+                                       UNICODE_TO_ASCII_TRANSLATION_MAP)
         else:
             output = output.translate(UNICODE_TO_ASCII_TRANSLATION_MAP)
         output = output.encode(DEFAULT_ENCODING, "replace")