1 files changed, 59 insertions, 0 deletions

diff --git a/venv/lib/python3.9/site-packages/streamlit/env_util.py b/venv/lib/python3.9/site-packages/streamlit/env_util.py
new file mode 100644
index 00000000..7b78b6a4
--- /dev/null
+++ b/venv/lib/python3.9/site-packages/streamlit/env_util.py
@@ -0,0 +1,59 @@
+# Copyright (c) Streamlit Inc. (2018-2022) Snowflake Inc. (2022)
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import os
+import platform
+import re
+import sys
+
+_system = platform.system()
+IS_WINDOWS = _system == "Windows"
+IS_DARWIN = _system == "Darwin"
+IS_LINUX_OR_BSD = (_system == "Linux") or ("BSD" in _system)
+
+
+def is_pex():
+    """Return if streamlit running in pex.
+
+    Pex modifies sys.path so the pex file is the first path and that's
+    how we determine we're running in the pex file.
+    """
+    if re.match(r".*pex$", sys.path[0]):
+        return True
+    return False
+
+
+def is_repl():
+    """Return True if running in the Python REPL."""
+    import inspect
+
+    root_frame = inspect.stack()[-1]
+    filename = root_frame[1]  # 1 is the filename field in this tuple.
+
+    if filename.endswith(os.path.join("bin", "ipython")):
+        return True
+
+    # <stdin> is what the basic Python REPL calls the root frame's
+    # filename, and <string> is what iPython sometimes calls it.
+    if filename in ("<stdin>", "<string>"):
+        return True
+
+    return False
+
+
+def is_executable_in_path(name):
+    """Check if executable is in OS path."""
+    from distutils.spawn import find_executable
+
+    return find_executable(name) is not None