From de0bbf9e27a3f466b7295c2c994da4fb9534160a Mon Sep 17 00:00:00 2001
From: Feminto <feminto@gmail.com>
Date: Sun, 8 Jun 2025 22:20:46 -0700
Subject: [PATCH] Adding solution for all questions

---
 BigCountries.py                               |  5 ++
 CustomersWhoNeverOrder.py                     |  5 ++
 ...PandasDataframeWithTwo-DimensionalLists.py | 62 +++++++++++++++++++
 RecyclableAndLowFatProducts.py                |  5 ++
 4 files changed, 77 insertions(+)
 create mode 100644 BigCountries.py
 create mode 100644 CustomersWhoNeverOrder.py
 create mode 100644 MakeAPandasDataframeWithTwo-DimensionalLists.py
 create mode 100644 RecyclableAndLowFatProducts.py

diff --git a/BigCountries.py b/BigCountries.py
new file mode 100644
index 0000000..7c8860e
--- /dev/null
+++ b/BigCountries.py
@@ -0,0 +1,5 @@
+import pandas as pd
+
+def big_countries(world: pd.DataFrame) -> pd.DataFrame:
+    df = world[(world['area'] >= 3000000) | (world['population'] >= 25000000)]
+    return df[['name','population','area']]
\ No newline at end of file
diff --git a/CustomersWhoNeverOrder.py b/CustomersWhoNeverOrder.py
new file mode 100644
index 0000000..206a957
--- /dev/null
+++ b/CustomersWhoNeverOrder.py
@@ -0,0 +1,5 @@
+import pandas as pd
+
+def find_customers(customers: pd.DataFrame, orders: pd.DataFrame) -> pd.DataFrame:
+    df = customers[~(customers['id'].isin(orders['customerId']))]
+    return df[['name']].rename(columns = {'name':'customers'})
\ No newline at end of file
diff --git a/MakeAPandasDataframeWithTwo-DimensionalLists.py b/MakeAPandasDataframeWithTwo-DimensionalLists.py
new file mode 100644
index 0000000..0e93c9c
--- /dev/null
+++ b/MakeAPandasDataframeWithTwo-DimensionalLists.py
@@ -0,0 +1,62 @@
+#Q1
+#Create Pandas Dataframe from 2D List using pd.DataFrame()
+
+import pandas as pd  
+
+list_1 = [['Geek', 25],
+          ['is', 30],
+          ['for', 26],
+          ['Geeksforgeeks', 22]] 
+
+# creating df object with columns specified    
+df = pd.DataFrame(list_1, columns =['Tag','number']) 
+print(df )
+
+
+#Q2
+#Create Pandas Dataframe from 2D List using pd.DataFrame.from_records()
+
+import pandas as pd
+
+data = [['Geek1', 28, 'Analyst'],
+        ['Geek2', 35, 'Manager'],
+        ['Geek3', 29, 'Developer']]
+
+columns = ['Name', 'Age', 'Occupation']
+
+# Creating DataFrame using pd.DataFrame.from_records()
+df = pd.DataFrame.from_records(data, columns=columns)
+print(df)
+
+
+#Q3
+#Create Pandas Dataframe from 2D List using pd.DataFrame.from_dict()
+
+import pandas as pd
+
+data = [['Geek1', 26, 'Scientist'],
+        ['Geek2', 31, 'Researcher'],
+        ['Geek3', 24, 'Engineer']]
+
+columns = ['Name', 'Age', 'Occupation']
+
+# Creating DataFrame using pd.DataFrame.from_dict()
+df = pd.DataFrame.from_dict(dict(zip(columns, zip(*data))))
+print(df)
+
+
+
+#Q4
+#Create Pandas Dataframe from 2D List using Specifying Data Types
+import pandas as pd
+
+data = [['Geek1', 'Reacher', 25],
+        ['Geek2', 'Pete', 30],
+        ['Geek3', 'Wilson', 26],
+        ['Geek4', 'Williams', 22]]
+
+columns = ['FName', 'LName', 'Age']
+
+# Creating DataFrame with specified data types
+df = pd.DataFrame(data, columns=columns)
+print(df)
\ No newline at end of file
diff --git a/RecyclableAndLowFatProducts.py b/RecyclableAndLowFatProducts.py
new file mode 100644
index 0000000..4e658fc
--- /dev/null
+++ b/RecyclableAndLowFatProducts.py
@@ -0,0 +1,5 @@
+import pandas as pd
+
+def find_products(products: pd.DataFrame) -> pd.DataFrame:
+    df = products[(products['low_fats'] == 'Y') & (products['recyclable'] == 'Y')]
+    return df[['product_id']]
\ No newline at end of file