Create sol.py

sol.py

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+import solara
+
+# Declare reactive variables at the top level. Components using these variables
+# will be re-executed when their values change.
+sentence = solara.reactive("Solara permite implementar rapido un frontend reactivo.")
+word_limit = solara.reactive(10)
+
+@solara.component
+def Page():
+    # Calculate word_count within the component to ensure re-execution when reactive variables change.
+    word_count = len(sentence.value.split())
+
+    solara.SliderInt("Word limit", value=word_limit, min=2, max=20)
+    solara.InputText(label="Your sentence", value=sentence, continuous_update=True)
+
+    # Display messages based on the current word count and word limit.
+    if word_count >= int(word_limit.value):
+        solara.Error(f"With {word_count} words, you passed the word limit of {word_limit.value}.")
+    elif word_count >= int(0.8 * word_limit.value):
+        solara.Warning(f"With {word_count} words, you are close to the word limit of {word_limit.value}.")
+    else:
+        solara.Success("Great short writing!")
+
+
+# The following line is required only when running the code in a Jupyter notebook:
+Page()