As the other poster mentioned, you might try:

df = pd.read_csv('1459966468_324.csv', encoding='utf8')

However this could still leave you looking at 'object' when you print the dtypes. To confirm they are utf8, try this line after reading the CSV:

df.apply(lambda x: pd.lib.infer_dtype(x.values))

Example output:

args            unicode
date         datetime64
host            unicode
kwargs          unicode
operation       unicode
Answer from Sam on Stack Overflow
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Saturn Cloud
saturncloud.io › blog › a-list-of-pandas-readcsv-encoding-options
A List of Pandas readcsv Encoding Options | Saturn Cloud Blog
May 1, 2026 - Here’s a list of encoding options that you can use with the read_csv function in Pandas: df = pd.read_csv('example_utf8.csv', encoding='utf-8') print(df)
Discussions

csv - Encoding Error in Panda read_csv - Stack Overflow
I'm attempting to read a CSV file into a Dataframe in Pandas. When I try to do that, I get the following error: UnicodeDecodeError: 'utf-8' codec can't decode byte 0x96 in position 55: invalid st... More on stackoverflow.com
🌐 stackoverflow.com
BUG: read_csv is failing with an encoding different that UTF-8 and memory_map set to True in version 1.2.4
I have checked that this issue has not already been reported. I have confirmed this bug exists on the latest version of pandas. (optional) I have confirmed this bug exists on the master branch of p... More on github.com
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9
April 16, 2021
pandas.read_csv() encoding issue
and it works well to give the encoding needed for that particular file. Is there a way pandas can read a csv file and find out the encoding automatically . Or is there a fix to this? More on github.com
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8
July 30, 2019
python - UnicodeDecodeError when reading CSV file in Pandas - Stack Overflow
File "C:\Importer\src\dfman\im...tring_box_utf8 (pandas\parser.c:15657) UnicodeDecodeError: 'utf-8' codec can't decode byte 0xda in position 6: invalid continuation byte · The source/creation of these files all come from the same place. What's the best way to correct this to proceed with the import? ... Save this answer. ... Show activity on this post. read_csv takes an encoding option to ... More on stackoverflow.com
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Reddit
reddit.com › r/learnpython › problem with pandas read_csv always trying to read as utf-8
r/learnpython on Reddit: Problem with Pandas read_csv always trying to read as UTF-8
June 21, 2022 -

I'm trying to read in a CSV file using pandas.read\_file(report), but I'm hitting this error message:

'utf-8' codec can't decode byte 0x93 in position 28: invalid start byte

I've also tried this with various encoding types, pandas.read_file(report, encoding='UTF-16')

but for some reason it has no effect on the error, it always shows as 'utf-8' The encoding line shows in my traceback so I know that it's there. Does anyone know why this is?

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Medium
medium.com › @anala007 › dealing-with-the-unicodedecodeerror-in-pandas-when-reading-csv-files-edc4987bf68b
Dealing with the UnicodeDecodeError in Pandas When Reading CSV Files | by Arun | Medium
June 12, 2023 - Some encodings are more flexible than others. For example, “utf-8-sig” is a variant of UTF-8 that is more tolerant of certain types of errors: import pandas as pd df = pd.read_csv('file.csv', encoding='utf-8-sig')
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DEV Community
dev.to › _aadidev › 3-ways-to-handle-non-utf-8-characters-in-pandas-242
3 Ways to Handle non UTF-8 Characters in Pandas - DEV Community
January 20, 2022 - Pandas, by default, assumes utf-8 encoding every time you do pandas.read_csv, and it can feel like staring into a crystal ball trying to figure out the correct encoding.
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Dasboardai
dasboardai.com › blog › how-do-i-fix-an-unicode-error-in-python
How to fixed Encoding errors in pandas - DasBoardai.com
import chardet # Open the file in binary mode to detect encoding with open('file.csv', 'rb') as f: result = chardet.detect(f.read()) encoding = result['encoding'] print(encoding) df = pd.read_csv('sales_data_sample.csv', encoding=encoding) ... Handling encoding errors in Pandas, especially when reading CSV files, is a common challenge when dealing with data from various sources.
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Quora
quora.com › How-do-I-fix-a-Unicode-error-while-reading-a-CSV-file-with-a-pandas-library-in-Python-3-6
How to fix a Unicode error while reading a CSV file with a pandas library in Python 3.6 - Quora
Quora is a place to gain and share knowledge. It's a platform to ask questions and connect with people who contribute unique insights and quality answers.
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GitHub
github.com › pandas-dev › pandas › issues › 40986
BUG: read_csv is failing with an encoding different that UTF-8 and memory_map set to True in version 1.2.4 · Issue #40986 · pandas-dev/pandas
April 16, 2021 - BUG: read_csv is failing with an encoding different that UTF-8 and memory_map set to True in version 1.2.4#40986 ... BugIO CSVread_csv, to_csvread_csv, to_csvRegressionFunctionality that used to work in a prior pandas versionFunctionality that used to work in a prior pandas version
Author: pandas-dev
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codelessgenie
codelessgenie.com › blog › unicodedecodeerror-utf-8-codec-while-reading-a-csv-file
How to Fix UnicodeDecodeError: 'utf-8' Codec When Reading CSV in Pandas After Using to_csv (Python Guide) — CodeLessGenie.com
Best Practice: Always explicitly set encoding='utf-8' when writing CSVs (unless you have a specific reason not to), as UTF-8 is universal: # Write with utf-8 (explicitly, even though it's default in modern Pandas) df.to_csv("data_utf8.csv", ...
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GitHub
github.com › pandas-dev › pandas › issues › 27655
pandas.read_csv() encoding issue · Issue #27655 · pandas-dev/pandas
July 30, 2019 - elif filename.endswith('.csv'): file_df = pd.read_csv(filed, encoding='utf-8')
Author: pandas-dev
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GitHub
github.com › pandas-dev › pandas › issues › 39450
BUG: read_csv does not raise UnicodeDecodeError on non utf-8 characters · Issue #39450 · pandas-dev/pandas
January 28, 2021 - from pathlib import Path import ... Output: � 0 a 1 1 · In pandas version 1.2.1, reading a csv file containing non utf-8 characters does not raise a UnicodeDecoreError....
Author: pandas-dev
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Edvaldoguimaraes
edvaldoguimaraes.com.br › 2024 › 09 › 19 › ler-um-csv-com-pandas-utilizando-utf-8
Ler um CSV com Pandas Utilizando UTF-8 – edvaldo b. guimarães filho
September 19, 2024 - # Lendo apenas as 10 primeiras linhas df = pd.read_csv('seu_arquivo.csv', encoding='utf-8', nrows=10) print(df) # Lendo o arquivo em chunks de 1000 linhas for chunk in pd.read_csv('seu_arquivo.csv', encoding='utf-8', chunksize=1000): print(chunk.head()) # Processa e exibe as primeiras linhas de cada chunk · Pandas permite definir como tratar valores ausentes, substituindo strings específicas por NaN usando o parâmetro na_values.
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GitHub
github.com › pandas-dev › pandas › issues › 44323
to_csv() enconding option "utf-8-BOM" · Issue #44323 · pandas-dev/pandas
November 5, 2021 - Because Excel needs the BOM to open csvs correctly. Everytime I save a csv with Pandas I have to open it with Notepad++ and change the encoding from utf-8 to uf8-BOM so that I can open it with Excel.
Author: pandas-dev
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GeeksforGeeks
geeksforgeeks.org › python › how-to-resolve-a-unicodedecodeerror-for-a-csv-file-in-python
How to resolve a UnicodeDecodeError for a CSV file in Python? - GeeksforGeeks
July 23, 2025 - Then the program calls the read_csv function to read the contents of the CSV file specified by the path and also passes the encoding through which the CSV file must be decoded (UTF-16 in this case).
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GitHub
github.com › pandas-dev › pandas › issues › 13497
read_csv includes the BOM of an utf8 file into the first column label · Issue #13497 · pandas-dev/pandas
June 22, 2016 - Consider the following script: import pandas as PD df = PD.read_csv('sample.csv', encoding='utf8') print(df.columns[:5])
Author: pandas-dev