python pandas difference between two data frames

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Pleasant Panda answered on April 18, 2020 Popularity 10/10 Helpfulness 7/10

answer python pandas difference between two data frames

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python pandas difference between two data frames

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diff_df = pd.merge(df1, df2, how='outer', indicator='Exist')

diff_df = diff_df.loc[diff_df['Exist'] != 'both']

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Contributed on Apr 28 2020

Pleasant Panda

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pandas difference between two dataframes

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source_df.merge(target_df,how='left',indicator=True).loc[lambda x:x['_merged']!='both']

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Contributed on Apr 18 2020

Repulsive Rhinoceros

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difference between 2 dataframes

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df1.merge(df2,indicator = True, how='left').loc[lambda x : x['_merge']!='both']
Out[421]: 
   A  B     _merge
1  2  3  left_only
2  3  4  left_only
3  3  4  left_only

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Contributed on Sep 05 2021

David the pythonistas

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find difference between two pandas dataframes

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# by doing outer, you will get records from both the sides.
f = df1.merge(df2,indicator = True, how='outer').loc[lambda x : x['_merge']!='both']
Out[421]: 
   A  B     _merge
1  2  3  left_only
2  3  4  left_only
3  3  4  left_only

left_unique_result = f.loc[lambda x: x['_merge'] == 'left_only']
right_unique_result = f.loc[lambda x: x['_merge'] == 'right_only']

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Contributed on Jun 15 2021

Difficult Deer

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python toml

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TOML (Tom's Obvious, Minimal Language) is a lightweight configuration file format that is easy to read and write. Python's built-in tomllib (Python 3.11+) or toml package (for earlier versions) can be used to parse TOML files.

Reading a TOML File in Pythonimport tomllib  # Python 3.11+ (For older versions, use 'import toml' after installing `toml` package)

# Read TOML file
with open("config.toml", "rb") as file:
    config = tomllib.load(file)

# Access values
print(config["database"]["host"])  # Output: localhost
print(config["database"]["port"])  # Output: 5432
Example config.toml File[database]
host = "localhost"
port = 5432
user = "admin"
password = "securepass"

[server]
debug = true
port = 8080

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Contributed on Feb 17 2025

Adorable Aardvark

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python pandas difference between two data frames

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