pr12 (#12)

- modify8 (c8bcd584047353055042c1ce6d64c7005cc38cb8)

SessionState.py

@@ -1,117 +0,0 @@
-"""Hack to add per-session state to Streamlit.
-
-Usage
------
-
->>> import SessionState
->>>
->>> session_state = SessionState.get(user_name='', favorite_color='black')
->>> session_state.user_name
-''
->>> session_state.user_name = 'Mary'
->>> session_state.favorite_color
-'black'
-
-Since you set user_name above, next time your script runs this will be the
-result:
->>> session_state = get(user_name='', favorite_color='black')
->>> session_state.user_name
-'Mary'
-
-"""
-try:
-    import streamlit.ReportThread as ReportThread
-    from streamlit.server.Server import Server
-except Exception:
-    # Streamlit >= 0.65.0
-    import streamlit.report_thread as ReportThread
-    from streamlit.server.server import Server
-
-
-class SessionState(object):
-    def __init__(self, **kwargs):
-        """A new SessionState object.
-
-        Parameters
-        ----------
-        **kwargs : any
-            Default values for the session state.
-
-        Example
-        -------
-        >>> session_state = SessionState(user_name='', favorite_color='black')
-        >>> session_state.user_name = 'Mary'
-        ''
-        >>> session_state.favorite_color
-        'black'
-
-        """
-        for key, val in kwargs.items():
-            setattr(self, key, val)
-
-
-def get(**kwargs):
-    """Gets a SessionState object for the current session.
-
-    Creates a new object if necessary.
-
-    Parameters
-    ----------
-    **kwargs : any
-        Default values you want to add to the session state, if we're creating a
-        new one.
-
-    Example
-    -------
-    >>> session_state = get(user_name='', favorite_color='black')
-    >>> session_state.user_name
-    ''
-    >>> session_state.user_name = 'Mary'
-    >>> session_state.favorite_color
-    'black'
-
-    Since you set user_name above, next time your script runs this will be the
-    result:
-    >>> session_state = get(user_name='', favorite_color='black')
-    >>> session_state.user_name
-    'Mary'
-
-    """
-    # Hack to get the session object from Streamlit.
-
-    ctx = ReportThread.get_report_ctx()
-
-    this_session = None
-
-    current_server = Server.get_current()
-    if hasattr(current_server, '_session_infos'):
-        # Streamlit < 0.56
-        session_infos = Server.get_current()._session_infos.values()
-    else:
-        session_infos = Server.get_current()._session_info_by_id.values()
-
-    for session_info in session_infos:
-        s = session_info.session
-        if (
-            # Streamlit < 0.54.0
-            (hasattr(s, '_main_dg') and s._main_dg == ctx.main_dg)
-            or
-            # Streamlit >= 0.54.0
-            (not hasattr(s, '_main_dg') and s.enqueue == ctx.enqueue)
-            or
-            # Streamlit >= 0.65.2
-            (not hasattr(s, '_main_dg') and s._uploaded_file_mgr == ctx.uploaded_file_mgr)
-        ):
-            this_session = s
-
-    if this_session is None:
-        raise RuntimeError(
-            "Oh noes. Couldn't get your Streamlit Session object. "
-            'Are you doing something fancy with threads?')
-
-    # Got the session object! Now let's attach some state into it.
-
-    if not hasattr(this_session, '_custom_session_state'):
-        this_session._custom_session_state = SessionState(**kwargs)
-
-    return this_session._custom_session_state

app.py

@@ -1,35 +1,44 @@
-# import streamlit as st
-# import time
+import streamlit as st
+import time
 
-# with st.form("my_input"):
-#    st.write("Input")
-#    # product
-#    product=st.text_input("product")
-#    # gender
-#    gender=st.radio("gender", ["male", "female"])
-#    # profession
-#    profession=st.text_input("profession")
-#    # hobby
-#    hobby=st.text_input("hobby")
+def form_callback():
+    st.write(st.session_state.product)
+    st.write(st.session_state.gender) 
+    st.write(st.session_state.profession) 
+    st.write(st.session_state.hobby)
+
+with st.form("my_input"):
+   st.write("Input")
+   # product
+   product=st.text_input("product", key="product")
 
-#    # Every form must have a submit button.
-#    col1, col2=st.columns(2)
+   # gender
+   gender=st.radio("gender", ["male", "female"], key="gender")
 
-#    # Place a button in each column
-#    with col1:
-#         submitted = st.form_submit_button("Submit")
+   # profession
+   profession=st.text_input("profession", key="profession")
+
+   # hobby
+   hobby=st.text_input("hobby", key="hobby")
+
+   # Every form must have a submit button.
+   col1, col2=st.columns(2)
+
+   # Place a button in each column
+   with col1:
+        submitted = st.form_submit_button(label='Submit', on_click=form_callback)
+
+   with col2:
+        clear = st.form_submit_button("Clear") 
 
-#    with col2:
-#         clear = st.form_submit_button("Clear") 
 
- 
 
 # with st.form("my_output"):
 #     if submitted:
-#        st.write("product", product)
-#        st.write("gender", gender)
-#        st.write("profession", profession)
-#        st.write("hobby", hobby)
+#        st.write("product", st.session_state.product)
+#        st.write("gender", st.session_state.gender)
+#        st.write("profession", st.session_state.profession)
+#        st.write("hobby", st.session_state.hobby)
 #     # Clear the user inputs
 #     if clear:
 #         st.experimental_rerun()
@@ -54,48 +63,50 @@
 #     st.write_stream(stream_data)
 
 
-import streamlit as st
-import SessionState
+# import streamlit as st
+# import SessionState
+# from streamlit.server.server import Server
+# import streamlit.report_thread as ReportThread
 
-# Initialize session state
-session_state = SessionState.get(product="", gender="", profession="", hobby="")
+# # Initialize session state
+# session_state = SessionState.get(product="", gender="", profession="", hobby="")
 
-# Create a form for user inputs
-with st.form("my_input"):
-    st.write("Input")
-    # product
-    product = st.text_input("product", value=session_state.product)
-    # gender
-    gender = st.radio("gender", ["male", "female"], index=["male", "female"].index(session_state.gender) if session_state.gender else 0)
-    # profession
-    profession = st.text_input("profession", value=session_state.profession)
-    # hobby
-    hobby = st.text_input("hobby", value=session_state.hobby)
-
-    # Every form must have a submit button.
-    submitted = st.form_submit_button("Submit")
-    clear = st.form_submit_button("Clear")
-
-# Display the user inputs
-with st.form("my_output"):
-    if submitted and not clear:
-        # Save inputs to session state
-        session_state.product = product
-        session_state.gender = gender
-        session_state.profession = profession
-        session_state.hobby = hobby
-
-        st.write("product", product)
-        st.write("gender", gender)
-        st.write("profession", profession)
-        st.write("hobby", hobby)
-
-    # Clear the user inputs
-    if clear:
-        # Clear session state
-        session_state.product = ""
-        session_state.gender = ""
-        session_state.profession = ""
-        session_state.hobby = ""
-
-        st.experimental_rerun()
+# # Create a form for user inputs
+# with st.form("my_input"):
+#     st.write("Input")
+#     # product
+#     product = st.text_input("product", value=session_state.product)
+#     # gender
+#     gender = st.radio("gender", ["male", "female"], index=["male", "female"].index(session_state.gender) if session_state.gender else 0)
+#     # profession
+#     profession = st.text_input("profession", value=session_state.profession)
+#     # hobby
+#     hobby = st.text_input("hobby", value=session_state.hobby)
+
+#     # Every form must have a submit button.
+#     submitted = st.form_submit_button("Submit")
+#     clear = st.form_submit_button("Clear")
+
+# # Display the user inputs
+# with st.form("my_output"):
+#     if submitted and not clear:
+#         # Save inputs to session state
+#         session_state.product = product
+#         session_state.gender = gender
+#         session_state.profession = profession
+#         session_state.hobby = hobby
+
+#         st.write("product", product)
+#         st.write("gender", gender)
+#         st.write("profession", profession)
+#         st.write("hobby", hobby)
+
+#     # Clear the user inputs
+#     if clear:
+#         # Clear session state
+#         session_state.product = ""
+#         session_state.gender = ""
+#         session_state.profession = ""
+#         session_state.hobby = ""
+
+#         st.experimental_rerun()