diff --git a/news/3178.bugfix.rst b/news/3178.bugfix.rst
new file mode 100644
index 00000000..d3a4fd6c
--- /dev/null
+++ b/news/3178.bugfix.rst
@@ -0,0 +1 @@
+Environment variables are expanded correctly before running scripts on POSIX.
diff --git a/news/3231.bugfix.rst b/news/3231.bugfix.rst
new file mode 100644
index 00000000..036b2c12
--- /dev/null
+++ b/news/3231.bugfix.rst
@@ -0,0 +1 @@
+Correctly detect the virtualenv location inside an activated virtualenv.
diff --git a/news/3240.bugfix.rst b/news/3240.bugfix.rst
new file mode 100644
index 00000000..88375bf9
--- /dev/null
+++ b/news/3240.bugfix.rst
@@ -0,0 +1 @@
+Fixed a bug that editable pacakges can't be uninstalled correctly.
diff --git a/pipenv/core.py b/pipenv/core.py
index e4377521..cc042fe3 100644
--- a/pipenv/core.py
+++ b/pipenv/core.py
@@ -1574,10 +1574,7 @@ def format_pip_output(out, r=None):
 
 def warn_in_virtualenv():
     # Only warn if pipenv isn't already active.
-    pipenv_active = os.environ.get("PIPENV_ACTIVE")
-    if (environments.PIPENV_USE_SYSTEM or environments.PIPENV_VIRTUALENV) and not (
-        pipenv_active or environments.is_quiet()
-    ):
+    if environments.is_in_virtualenv() and not environments.is_quiet():
         click.echo(
             "{0}: Pipenv found itself running within a virtual environment, "
             "so it will automatically use that environment, instead of "
@@ -2297,7 +2294,9 @@ def do_run_posix(script, command):
                 err=True,
             )
         sys.exit(1)
-    os.execl(command_path, command_path, *script.args)
+    os.execl(
+        command_path, command_path, *[os.path.expandvars(arg) for arg in script.args]
+    )
 
 
 def do_run(command, args, three=None, python=False, pypi_mirror=None):
diff --git a/pipenv/environment.py b/pipenv/environment.py
index 0f161473..7558f94c 100644
--- a/pipenv/environment.py
+++ b/pipenv/environment.py
@@ -30,7 +30,7 @@ class Environment(object):
         self._modules = {'pkg_resources': pkg_resources, 'pipenv': pipenv}
         self.base_working_set = base_working_set if base_working_set else BASE_WORKING_SET
         prefix = normalize_path(prefix)
-        self.is_venv = not prefix == normalize_path(sys.prefix)
+        self.is_venv = is_venv or prefix != normalize_path(sys.prefix)
         if not sources:
             sources = []
         self.project = project
@@ -246,7 +246,7 @@ class Environment(object):
 
     def find_egg(self, egg_dist):
         """Find an egg by name in the given environment"""
-        site_packages = get_python_lib()
+        site_packages = self.libdir[1]
         search_filename = "{0}.egg-link".format(egg_dist.project_name)
         try:
             user_site = site.getusersitepackages()
@@ -264,8 +264,7 @@ class Environment(object):
         If the egg - link doesn 't exist, return the supplied distribution."""
 
         location = self.find_egg(dist)
-        if not location:
-            return dist.location
+        return location or dist.location
 
     def dist_is_in_project(self, dist):
         """Determine whether the supplied distribution is in the environment."""
@@ -483,7 +482,6 @@ class Environment(object):
             ])
             os.environ["PYTHONIOENCODING"] = vistir.compat.fs_str("utf-8")
             os.environ["PYTHONDONTWRITEBYTECODE"] = vistir.compat.fs_str("1")
-            os.environ["PATH"] = self.base_paths["PATH"]
             os.environ["PYTHONPATH"] = self.base_paths["PYTHONPATH"]
             if self.is_venv:
                 os.environ["VIRTUAL_ENV"] = vistir.compat.fs_str(prefix)
diff --git a/pipenv/environments.py b/pipenv/environments.py
index 066c296d..45a4f6b8 100644
--- a/pipenv/environments.py
+++ b/pipenv/environments.py
@@ -276,6 +276,12 @@ def is_quiet(threshold=-1):
     return PIPENV_VERBOSITY <= threshold
 
 
+def is_in_virtualenv():
+    pipenv_active = os.environ.get("PIPENV_ACTIVE")
+    virtual_env = os.environ.get("VIRTUAL_ENV")
+    return (PIPENV_USE_SYSTEM or virtual_env) and not pipenv_active
+
+
 PIPENV_SPINNER_FAIL_TEXT = fix_utf8(u"✘ {0}") if not PIPENV_HIDE_EMOJIS else ("{0}")
 
 PIPENV_SPINNER_OK_TEXT = fix_utf8(u"✔ {0}") if not PIPENV_HIDE_EMOJIS else ("{0}")
diff --git a/pipenv/project.py b/pipenv/project.py
index 0067348c..b2da4fd2 100644
--- a/pipenv/project.py
+++ b/pipenv/project.py
@@ -43,10 +43,11 @@ from .environments import (
     PIPENV_MAX_DEPTH,
     PIPENV_PIPFILE,
     PIPENV_VENV_IN_PROJECT,
-    PIPENV_VIRTUALENV,
     PIPENV_TEST_INDEX,
     PIPENV_PYTHON,
     PIPENV_DEFAULT_PYTHON_VERSION,
+    PIPENV_IGNORE_VIRTUALENVS,
+    is_in_virtualenv
 )
 
 
@@ -345,8 +346,8 @@ class Project(object):
     @property
     def environment(self):
         if not self._environment:
-            prefix = self.get_location_for_virtualenv()
-            is_venv = prefix == sys.prefix
+            prefix = self.virtualenv_location
+            is_venv = is_in_virtualenv()
             sources = self.sources if self.sources else [DEFAULT_SOURCE,]
             self._environment = Environment(
                 prefix=prefix, is_venv=is_venv, sources=sources, pipfile=self.parsed_pipfile,
@@ -426,8 +427,10 @@ class Project(object):
     @property
     def virtualenv_location(self):
         # if VIRTUAL_ENV is set, use that.
-        if PIPENV_VIRTUALENV:
-            return PIPENV_VIRTUALENV
+        virtualenv_env = os.getenv("VIRTUAL_ENV")
+        if ("PIPENV_ACTIVE" not in os.environ and
+                not PIPENV_IGNORE_VIRTUALENVS and virtualenv_env):
+            return virtualenv_env
 
         if not self._virtualenv_location:  # Use cached version, if available.
             assert self.project_directory, "project not created"
diff --git a/tests/integration/conftest.py b/tests/integration/conftest.py
index 33fc4fca..2d671803 100644
--- a/tests/integration/conftest.py
+++ b/tests/integration/conftest.py
@@ -6,6 +6,8 @@ import warnings
 import pytest
 
 from pipenv._compat import TemporaryDirectory, Path
+from pipenv.exceptions import VirtualenvActivationException
+from pipenv.utils import temp_environ
 from pipenv.vendor import delegator
 from pipenv.vendor import requests
 from pipenv.vendor import toml
@@ -112,6 +114,9 @@ def isolate(pathlib_tmpdir):
     os.environ["GIT_AUTHOR_EMAIL"] = fs_str("pipenv@pipenv.org")
     mkdir_p(os.path.join(home_dir, ".virtualenvs"))
     os.environ["WORKON_HOME"] = fs_str(os.path.join(home_dir, ".virtualenvs"))
+    # Ignore PIPENV_ACTIVE so that it works as under a bare environment.
+    os.environ.pop("PIPENV_ACTIVE", None)
+    os.environ.pop("VIRTUAL_ENV", None)
     global WE_HAVE_GITHUB_SSH_KEYS
     WE_HAVE_GITHUB_SSH_KEYS = check_github_ssh()
 
@@ -279,3 +284,22 @@ def pip_src_dir(request, pathlib_tmpdir):
 @pytest.fixture()
 def testsroot():
     return TESTS_ROOT
+
+
+@pytest.fixture()
+def virtualenv(pathlib_tmpdir):
+    virtualenv_path = pathlib_tmpdir / "venv"
+    with temp_environ():
+        c = delegator.run("virtualenv {}".format(virtualenv_path), block=True)
+        assert c.return_code == 0
+        for name in ("bin", "Scripts"):
+            activate_this = virtualenv_path / name / "activate_this.py"
+            if activate_this.exists():
+                with open(str(activate_this)) as f:
+                    code = compile(f.read(), str(activate_this), "exec")
+                    exec(code, dict(__file__=str(activate_this)))
+                break
+        else:
+            raise VirtualenvActivationException("Can't find the activate_this.py script.")
+        os.environ["VIRTUAL_ENV"] = str(virtualenv_path)
+        yield virtualenv_path
diff --git a/tests/integration/test_project.py b/tests/integration/test_project.py
index 5e1bafb9..8bb76da1 100644
--- a/tests/integration/test_project.py
+++ b/tests/integration/test_project.py
@@ -2,6 +2,7 @@
 import io
 import pytest
 import os
+import tarfile
 from pipenv.project import Project
 from pipenv.utils import temp_environ
 from pipenv.patched import pipfile
@@ -161,3 +162,38 @@ version = "*"
             contents = f.read()
         assert "[packages.requests]" not in contents
         assert 'requests = {version = "*"}' in contents
+
+
+@pytest.mark.install
+@pytest.mark.project
+def test_include_editable_packages(PipenvInstance, pypi, testsroot, pathlib_tmpdir):
+    file_name = "requests-2.19.1.tar.gz"
+    package = pathlib_tmpdir.joinpath("requests-2.19.1")
+    source_path = os.path.abspath(os.path.join(testsroot, "test_artifacts", file_name))
+    with PipenvInstance(chdir=True, pypi=pypi) as p:
+        with tarfile.open(source_path, "r:gz") as tarinfo:
+            tarinfo.extractall(path=str(pathlib_tmpdir))
+        c = p.pipenv('install -e {}'.format(package))
+        assert c.return_code == 0
+        project = Project()
+        assert "requests" in [
+            package.project_name
+            for package in project.environment.get_installed_packages()
+        ]
+
+
+@pytest.mark.project
+def test_run_in_virtualenv(PipenvInstance, pypi, virtualenv):
+    with PipenvInstance(chdir=True, pypi=pypi) as p:
+        os.environ.pop("PIPENV_IGNORE_VIRTUALENVS", None)
+        project = Project()
+        assert project.virtualenv_location == str(virtualenv)
+        c = p.pipenv("run pip install click")
+        assert c.return_code == 0
+        assert "Courtesy Notice" in c.err
+        c = p.pipenv('run python -c "import click;print(click.__file__)"')
+        assert c.return_code == 0
+        assert c.out.strip().startswith(str(virtualenv))
+        c = p.pipenv("clean --dry-run")
+        assert c.return_code == 0
+        assert "click" in c.out
diff --git a/tests/integration/test_run.py b/tests/integration/test_run.py
index 72f10596..8e82a6e2 100644
--- a/tests/integration/test_run.py
+++ b/tests/integration/test_run.py
@@ -1,6 +1,7 @@
 import os
 
 from pipenv.project import Project
+from pipenv.utils import temp_environ
 
 import pytest
 
@@ -28,6 +29,10 @@ notfoundscript = "randomthingtotally"
 appendscript = "cmd arg1"
 multicommand = "bash -c \"cd docs && make html\""
             """)
+            if os.name == "nt":
+                f.write('scriptwithenv = "echo %HELLO%"\n')
+            else:
+                f.write('scriptwithenv = "echo $HELLO"\n')
         c = p.pipenv('install')
         assert c.return_code == 0
 
@@ -52,3 +57,10 @@ multicommand = "bash -c \"cd docs && make html\""
         script = project.build_script('appendscript', ['a', 'b'])
         assert script.command == 'cmd'
         assert script.args == ['arg1', 'a', 'b']
+
+        with temp_environ():
+            os.environ['HELLO'] = 'WORLD'
+            c = p.pipenv("run scriptwithenv")
+            assert c.ok
+            if os.name != "nt":  # This doesn't work on CI windows.
+                assert c.out.strip() == "WORLD"