pandas to_csv bytesio

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How can I make a list of lists from user input? So you need to move the pointer back to the start, for Pandas to read. Use pandas read_csv () function to read CSV file (comma separated) into python pandas DataFrame and supports options to read any delimited file. We need a pandas library for this purpose, so first, we have to install it in our system using, To convert a dataframe df into a csv file we use. Where is it documented? Is energy "equal" to the curvature of spacetime? Ready to optimize your JavaScript with Rust? Pandas is fast and it has high-performance & productivity for users. The newline character or character sequence to use in the output string. To parse an index or column with a mixture of timezones, specify date_parser to be a partially-applied pandas.to_datetime () with utc=True. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. Pandas Left Merge with xlsx with CSV producing null value columns in output, how to find how many common features that two columns share in a data frame in Python. How can the x-axis dates be formatted without hh:mm:ss using matplotlib DateFormatter? Pandas makes it easy to export a dataframe to a CSV file without the header. Making statements based on opinion; back them up with references or personal experience. I want to read it into a Pandas dataframe, without writing to disk in between. What function do I use to loop through URL parameters and display it in a Pandas dataframe? seek (0) # create binary stream: gz_buffer = io. pandas.__version__ == "1.0.3" [to_csv and bytes on Python 3][pandas-issue . How do I select rows from a DataFrame based on column values? Is it possible to hide or delete the new Toolbar in 13.1? are forwarded to urllib.request.Request as header options. Converting JSON file into CSV file using Pandas to_csv: User Input | Input () Function | Keyboard Input, Understanding Python Bubble Sort with examples. How does the Chameleon's Arcane/Divine focus interact with magic item crafting? Let's see how we can modify this behaviour in Pandas: # Export a Pandas Dataframe Without a Header # Without Header How to merge rows inside a dataframe in python? 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Set to None for no compression. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. Python | Pandas DataFrame Creating a Pandas DataFrame Python | Pandas Series Creating a Pandas Series Python | Pandas Dataframe/Series.head () method Python | Pandas Dataframe.describe () method Dealing with Rows and Columns in Pandas DataFrame need to create it using either Pathlib or os: © 2022 pandas via NumFOCUS, Inc. then floats are converted to strings and thus csv.QUOTE_NONNUMERIC BytesIO , CSV. The simplest file format to send tabular data in is a CSV file. That's because after writing to a BytesIO object, the file pointer is at the end of the file, ready to write more. Column label for index column(s) if desired. To do this we will need to make use of pandas DataFrame to_csv() method and FastAPIs . There are options that we can pass while writing CSV files, the most popular one is setting index to false. Do bracers of armor stack with magic armor enhancements and special abilities? E.g. file. It worked for me on Python 2.7.3 and pandas 0.9.1 if I do: In [ 36 ]: pd.read_csv (BytesIO (fh.read ().decode ( 'UTF-16' ).encode ( 'UTF-8' )), sep ='\t', header =0 ) Out [ 36 ]: < class 'pandas.core.frame.DataFrame'> Int64Index: 50 entries, 0 to 49 . Corrected the headers of your dataset. This is a bug, I think because csv reader was passing back an extra empty line in the beginning. Let suppose above series is saved into a variable name cities. All rights reserved. Pandas - How to query multiple columns with single variable, Apply a function pairwise on a pandas series. String, path object (implementing os.PathLike[str]), or file-like Let us learn how-, Data-Frame is a two-dimensional data structure containing rows and columns. How to parse the following json, using pandas? For this MWE I'll have a file on disk, read it into BytesIO, then read that into Pandas. Otherwise returns None. We can also use pandas to read this csv file. The DataFrame contents can be written to a disk file, to a text buffer through the method DataFrame.to_csv (), by passing the name of the CSV file or the text stream instance as a parameter. .bz2, .zip, .xz, .zst, .tar, .tar.gz, .tar.xz or .tar.bz2 If a binary If a Callable is given, it takes Books that explain fundamental chess concepts. Please see fsspec and urllib for more By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Counting occurrence of values in a Panda series? 2. when appropriate. Not the answer you're looking for? Changed in version 1.1.0: Passing compression options as keys in dict is By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. If a non-binary file object is passed, it should How to print value_count() values from different columns together? Pandas Storing df to csv in BytesIO Ask Question Asked 3 years, 5 months ago Modified 3 years, 5 months ago Viewed 8k times 10 I want to store the output of df to csv in Memory Object of BytesIo () (Not StringIO) and then zip it and here is my attempt: A a reproducible gzip archive: If you see the "cross", you're on the right track. How to connect 2 VMware instance running on same Linux host machine via emulated ethernet cable (accessible via mac address)? tarfile.TarFile, respectively. defaults to utf-8. This causes confusion 2345 and makes the function difficult to work with. Then, I will present a monkey patch for pandas.DataFrame.to_csv which mitigates the known pitfall. what is the result of this code? for easier importing in R. Python write mode. When I exported with "Insert BOM" un-selected read_csv() worked correctly. It looks something like this-. pandas read_csv BytesIO. For other Create out.zip containing out.csv. Making statements based on opinion; back them up with references or personal experience. this method is called (\n for linux, \r\n for Windows, i.e.). We can covert objects like a pandas Data Frame and pandas Series into CSV files. Now let us learn how to export objects like Pandas Data-Frame and Series into a CSV file. or Open data.csv Example Load the CSV into a DataFrame: import pandas as pd Why does this code only work half the time? BytesIO MWEBytesIOPandas MWE . import pandas as pd import io import csv from io import BytesIO def check_columns (data, context): try: object_name = data ['name'] bucket_name = data ['bucket'] storage_client = storage.Client () bucket = storage_client.bucket (bucket_name) blob = bucket.blob (object_name) data = blob.download_as_string () #read the upload csv file as Byte type. According to the python documentation, [Both BytesIO and] "StringIO can be used like a file opened in text mode". Let us see how to export a Pandas DataFrame to a CSV file. As an example, the following could be passed for faster compression and to create bz2.BZ2File, zstandard.ZstdCompressor or I have confirmed this bug exists on the latest version of pandas. starting with s3://, and gcs://) the key-value pairs are Copy. It is a Python package that offers various data structures and operations for manipulating numerical data and time series. How to convert a JSON file from GET request into pandas dataframe? Write object to a comma-separated values (csv) file. Below is a table containing available readersand writers. gzip.open instead of gzip.GzipFile which prevented By default, it uses the value of True, meaning that the header is included. in size dimenson of NumPy? Changed in version 1.2.0: Previous versions forwarded dict entries for gzip to Character used to quote fields. object implementing a write() function. 7 comments amotl commented on Oct 20, 2020 edited I have checked that this issue has not already been reported. Is it appropriate to ignore emails from a student asking obvious questions? Did the apostolic or early church fathers acknowledge Papal infallibility? to_csv () is used to export the file. To learn more, see our tips on writing great answers. So when Pandas tries to read it, it starts reading after the last byte that was written. 1980s short story - disease of self absorption, PSE Advent Calendar 2022 (Day 11): The other side of Christmas. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 import boto3 import gzip import pandas as pd from io import BytesIO, TextIOWrapper df = pd.read_csv ('s3://ramey/test.csv') gz_buffer = BytesIO () I have a BytesIO file-like object, containing a CSV. Find centralized, trusted content and collaborate around the technologies you use most. Japanese girlfriend visiting me in Canada - questions at border control? Add a new light switch in line with another switch? Hebrews 1:3 What is the Relationship Between Jesus and The Word of His Power? If None is given, and How to add pandas data to an existing csv file? Write out the column names. Specifies how encoding and decoding errors are to be handled. If None, the result is Here's a solution in Python 3.5.2 using Pandas 0.20.1. The corresponding writerfunctions are object methods that are accessed like DataFrame.to_csv(). To_csv Overview: Pandas DataFrame class supports storing data in two-dimensional format using nump.ndarray as the underlying data-structure. Note: A fast-path exists for iso8601-formatted dates. I am trying to perform a csv data parsing using pandas.read_csv(bytes, chunksize=n) where bytes is a ongoing stream of data which I want to receive from a database CLOB field, reading it by chunks. So because you have a header row, passing header=0 is sufficient and additionally passing names appears to be confusing pd.read_csv. How to iterate over rows in a DataFrame in Pandas, Get a list from Pandas DataFrame column headers, How to deal with SettingWithCopyWarning in Pandas. Are there breakers which can be triggered by an external signal and have to be reset by hand? Does balls to the wall mean full speed ahead or full speed ahead and nosedive? sep : String of length 1. For HTTP(S) URLs the key-value pairs If a list of strings is given it is will treat them as non-numeric. It pays sometimes though, to be explicit and supply the compression argument. In my use case I downloaded the file straight into BytesIO. is a non-binary file object. compression={'method': 'gzip', 'compresslevel': 1, 'mtime': 1}. We will be using the to_csv () function to save a DataFrame as a CSV file. Changed in version 1.2.0: Compression is supported for binary file objects. Sending Data as a CSV File. (otherwise no compression). I want to read it into a Pandas dataframe, without writing to disk in between. To write a csv file to a new folder or nested folder you will first need to create it using either Pathlib or os: >>> >>> from pathlib import Path >>> filepath = Path('folder/subfolder/out.csv') >>> filepath.parent.mkdir(parents=True, exist_ok=True) >>> df.to_csv(filepath) >>> How do I get the row count of a Pandas DataFrame? The pandas I/O API is a set of top level readerfunctions accessed like pandas.read_csv()that generally return a pandas object. And it is stored at a location C:\Users\Owner\Documents\json.json, Converting this json file into a csv file is a single line of code , Series is a one-dimensional labelled ndarray. Character recognized as decimal separator. BytesIO # compress string stream using gzip: with gzip. How to get first day of each month in datetimeindex, when month doesn't starts with 01? Now, there are so many parameters in to_csv(). Pandas, between. European data. Due to / python cannot read the path clearly so we have used r to give python the order to read the path as it is. With a single line of code involving read_csv () from pandas, you: Located the CSV file you want to import from your filesystem. Correct way to save form_list form instances to the database? If you have set a float_format Python Collections: Upgraded Version of Built-in Collections? You may also want to check out all available functions/classes of the module pandas.compat , or try the search function . Collapse Output In VS Code Jupyter Notebook into Scrollable Window, Pyspark: Expand pyspark dataframe adding missing periods, How can I remove rows with the same value in 2 ore more rows in R. How to extract and convert first 6 digits of a 10 character-number into as.Date? Note that this sounds like a similar problem to the title of this post, but the error messages are different, and that post has the X-Y problem. file.csv. Matplotlib Logscale colorbar with for loop for loading data and plotting? Here are a few examples of ways to explore data using pandas: Inspect the number of rows and columns. Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. Changed in version 1.5.0: Previously was line_terminator, changed for consistency with use , for Comma-separated values or CSV files are plain text files that contain data separated by a comma. Can also be a dict with key 'method' set I have a BytesIO file-like object, containing a CSV. New in version 1.5.0: Added support for .tar files. to one of {'zip', 'gzip', 'bz2', 'zstd', 'tar'} and other precedence over other numeric formatting parameters, like decimal. dask.dataframe.io.csv Dask documentation Dask Distributed Dask ML Examples Ecosystem Community Toggle navigation sidebar Getting Started Install Dask 10 Minutes to Dask Talks & Tutorials Best Practices FAQ Fundamentals Array Best Practices Chunks Create Dask Arrays Overlapping Computations Does the collective noun "parliament of owls" originate in "parliament of fowls"? So when Pandas tries to read it, it starts reading after the last byte that was written. TypeError: unsupported operand type(s) for *: 'IntVar' and 'float'. Pandas to_csv method is used to convert objects into CSV files. Here we have placed r before the path and file name to avoid this error-. String of length 1. Does the collective noun "parliament of owls" originate in "parliament of fowls"? I want to store the output of df to csv in Memory Object of BytesIo() (Not StringIO) and then zip it and here is my attempt: Copyright 2022 www.appsloveworld.com. it doesn't work?? assumed to be aliases for the column names. Python Pool is a platform where you can learn and become an expert in every aspect of Python programming language as well as in AI, ML, and Data Science. False do not print fields for index names. The following are 30 code examples of io.BytesIO () . Let us understand some of the important ones. Did neanderthals need vitamin C from the diet? And that is why the Pandas to CSV method is very important. a,b 1,2 3,4 . See Parsing a CSV with mixed timezones for more. BytesIOCSV Pandas MWE. copy and paste from below import io data = pd.read_csv(io.BytesIO(uploaded['your_file_name.csv'])). Asking for help, clarification, or responding to other answers. Is a bad practice to use accent in python class name. In this pandas article, I will explain how to read a CSV file with or without a header, skip rows, skip columns, set columns to index, and many more with examples. The name provided as an argument will be the name of the CSV file. import io stream_str = io.BytesIO (b"JournalDev Python: \x00\x01") print (stream_str.getvalue ()) Let's see the output for this program: The getvalue () function just takes the value from the Buffer as a String. gunicorn not starting on port 80 but starting on port 8000, Which set of python libraries i should learn for AI and Data mining stuff, Trouble with psycopg2 in virtualenv python3 for use with Django, Django After Midnight Business Hours TimeField Comparison Error, Django custom 500 error template not displaying request.user, parse csv with pandas vs storing data in a database (sqlite or mssql), Reading csv files from a directory and storing the data to a multi-index Pandas dataframe, Storing DataFrame output utilizing Pandas to either csv or MySql DB, Import multiple csv files into pandas and concatenate into one DataFrame, UnicodeDecodeError when reading CSV file in Pandas with Python. The available write modes are the same as Can virent/viret mean "green" in an adjectival sense? DataFrame.to_csv () Syntax : to_csv (parameters) Parameters : path_or_buf : File path or object, if None is provided the result is returned as a string. Here are the examples of the python api pandas.compat.BytesIO taken from open source projects. Can pandas automatically read dates from a CSV file? Is there a higher analog of "category with all same side inverses is a groupoid"? Find centralized, trusted content and collaborate around the technologies you use most. How to generate values in a range continuously? A data frame looks something like this-. compression mode is zip. If infer and path_or_buf is https://docs.python.org/3/library/io.html Reply crashfrog Additional comment actions zipfile.ZipFile, gzip.GzipFile, To write a csv file to a new folder or nested folder you will first Format string for floating point numbers. Transform io variable to json format and create a dataframe: Bellow code: io = BytesIO () ftp.retrbinary ('RETR '+ file_name, io.write) io.seek (0) data_json = io.json () df = spark.createDataFrame (io, jsonSchema) Joo Galdino 107 Credit To: stackoverflow.com How to read in csv's using Python from a website with many csv's rev2022.12.9.43105. Now let us learn how to export objects like Pandas Data-Frame and Series into a CSV file. In a dataframe with a date column in POSIXct format, what is the date associated to a specific number in another column? Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. Note for both the first and second methods, every time you start a new run time or in other . The following are 30 code examples of pandas.compat.BytesIO () . We do not currently allow content pasted from ChatGPT on Stack Overflow; read our policy here. usecols is supposed to provide a filter before reading the whole DataFrame into memory; if used properly, there should never be a need to delete columns after reading. StringIO df. creating a numpy vector using 3 components, Numpy apply function to every item in array, Fast spearman correlation between two pandas dataframes. A string representing the encoding to use in the output file, Average trend curve for data points in Python, A confusion of indexing/slicing a numpy array, Get the frequencies of values from one numpy array in another array, repeating a numpy array a specified number of times for itertools, Fill in a numpy array without creating list. What is this fallacy: Perfection is impossible, therefore imperfection should be overlooked. Connect and share knowledge within a single location that is structured and easy to search. For on-the-fly compression of the output data. open(). setting mtime. Removing names from the second call gives the . return pd. path-like, then detect compression from the following extensions: .gz, I am running Python 3.7.2 with Pandas 0.23.4 on Linux Mint 19.1. Should teachers encourage good students to help weaker ones? MWE. read_csv (io. Pandas to_csv method is used to convert objects into CSV files. How to get rid of "Unnamed: 0" column in a pandas DataFrame read in from CSV file? This type of file is used to store and exchange data. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. Pandas is an open-source library that is built on top of NumPy library. What's the \synctex primitive? It's an important pandas function to read csv files and do operations on it: from io import BytesIO import requests r = requests.get (' https://docs.google.com/spreadsheet/ccc?key=0Ak1ecr7i0wotdGJmTURJRnZLYlV3M2daNTRubTdwTXc&output=csv') data = r.content In [10]: df = pd.read_csv (BytesIO (data), index_col=0,parse_dates= ['Quradate']) Summing values in dictionary of dictionaries, AttributeError: 'super' object has no attribute, Align arbitrarily rotated text annotations relative to the text, not the bounding box. Converting dtypes in messy pandas data-frame? Help us identify new roles for community members, Proposing a Community-Specific Closure Reason for non-English content, Create a Pandas Dataframe by appending one row at a time, Selecting multiple columns in a Pandas dataframe. Changed in version 1.2.0: Support for binary file objects was introduced. Character used to escape sep and quotechar details, and for more examples on storage options refer here. Introduction to Pandas in Python How to Install Python Pandas on Windows and Linux? Does integrating PDOS give total charge of a system? pandas.DataFrame.to_csv does not support writing to binary file objects 1. print ('the size of the data is: %d rows and %d columns' % dataframe_blobdata.shape) Inspect the first or last few rows in the following dataset: Python. It costs time and is not exactly necessary, therefore we add. Use index_label=False By voting up you can indicate which examples are most useful and appropriate. If path_or_buf is None, returns the resulting csv format as a Would it be possible, given current technology, ten years, and an infinite amount of money, to construct a 7,000 foot (2200 meter) aircraft carrier? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. If he had met some scary fish, he would immediately return to the surface. There is an option to "Insert BOM" that was selected. supported for compression modes gzip, bz2, zstd, and zip. How to remove multiple patterns of special characters in Python Regex Dataframe, Create N-Gram using Regular Expression in PySpark, How to compare the values of two columns and reorder the values based on comparison, Django Rest Framework: POST to Viewset with URL parameter, Cannot load facet Django in Pycharm community version, but no error in professional version. encoding is not supported if path_or_buf For non-standard datetime parsing, use pd.to_datetime after pd.read_csv. Help us identify new roles for community members, Proposing a Community-Specific Closure Reason for non-English content, How to iterate over rows in a DataFrame in Pandas. So you need to move the pointer back to the start, for Pandas to read. Not sure if it was just me or something she sent to the whole team. Changed in version 1.0.0: May now be a dict with key method as compression mode host, port, username, password, etc. Well, the data is correctly converting to a dataframe using read_csv(). Control quoting of quotechar inside a field. This is done using the header = argument, which accepts a boolean value. I want to store the output of df to csv in Memory Object of BytesIo() (Not StringIO) and then zip it and here is my attempt: Thanks for contributing an answer to Stack Overflow! sequence should be given if the object uses MultiIndex. Thanks for contributing an answer to Stack Overflow! reader = pandas.read_csv(io.BytesIO(b'1;qwer\n2;asdf\n3;zxcv'), sep=';', chunksize=2) for row_chunk in reader: print(row_chunk) returned as a string. It is mainly popular for importing and analyzing data much easier. IOInput/Output CPUIO IO htmlOutput Input IOInputOutput InputOutput Was the ZX Spectrum used for number crunching? read_csv and the standard library csv module. That will enable Pandas to check every dtype of columns while reading files. to_csv (csv_buffer, index = False) # reset stream position: csv_buffer. How to deal with negative numbers that returncode get from subprocess in Python? In this article I will first illustrate the problem with an example. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. and other entries as additional compression options if Convert/ reshape a wide pandas dataframe into long/ tabular form? The source DataFrame can be read from a S3, a local CSV, or whatever. A CSV file looks something like this- Japanese girlfriend visiting me in Canada - questions at border control? Write CSV file in Pandas Python In this section, we will learn how to create or write or export CSV files using pandas in python. We do not currently allow content pasted from ChatGPT on Stack Overflow; read our policy here. Field delimiter for the output file. Tring to load csv file in Pandas using dataframe, OSError: Initializing from file failed on csv in Pandas. Example #1 Asking for help, clarification, or responding to other answers. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. That's because after writing to a BytesIO object, the file pointer is at the end of the file, ready to write more. Exporting Data to CSV file using pandas to_csvmethod. In the United States, must state courts follow rulings by federal courts of appeals? The header was not read in properly by read_csv() (only the first column name was read). Pandas can easily read a zip folder that contains only one file: import pandas as pd df = pd.read_csv("Data_files/iris.zip") # or : pd.read_csv ("Data_files/iris.zip", # compression = "zip") df.head() Note: Note that Pandas successfully inferred the compression type. Hosted by OVHcloud. Many times, we have to create a CSV file, like when we have to store some critical data on our computer or when we have to share that data with someone else. Converting a series into a CSV file is the same as saving a data frame into a CSV file. What is that "." Defaults to csv.QUOTE_MINIMAL. Because the parameter low_memory is set True in default. Copy. The way to do this with a Pandas dataframe is to first write the data without the index (unless you want to include it in the filtered data): df.to_excel(writer, sheet_name='Sheet1', index=False) We then get the dataframe shape and add the autofilter: worksheet.autofilter(0, 0, max_row, max_col - 1) We can also add an optional filter criteria. Received a 'behavior reminder' from manager. String of length 1. python count the distance to a number in a column. The disk step is just to make a MWE. key-value pairs are forwarded to This type of file is used to store and exchange data. Here is a sample program: The BytesIO class can be used as an in-memory stream. A simple way to store big data sets is to use CSV files (comma separated files). When does Python decode a byte string while reading a file? The disk step is just to make a MWE. Concentration bounds for martingales with adaptive Gaussian steps. str, path object, file-like object, or None, default None, 'name,mask,weapon\nRaphael,red,sai\nDonatello,purple,bo staff\n'. If CSV files contains plain text and is a well know format that can be read by everyone including Pandas. Connect and share knowledge within a single location that is structured and easy to search. In our examples we will be using a CSV file called 'data.csv'. be opened with newline=, disabling universal newlines. Python dict with values as tuples to pandas DataFrame, Looping through a folder to merge several excel sheets into one column. In my use case I downloaded the file straight into BytesIO. rev2022.12.9.43105. Ready to optimize your JavaScript with Rust? Are defenders behind an arrow slit attackable? Optimizing Pyspark Performance to Match Pandas / Dask? Dealt with missing values so that they're encoded properly as NaN s. Corrected data types for every column in your dataset. Vector arithmetic by conditional selection from multiple columns in a dataframe, CSV dialect in pandas DataFrame to_csv (python), Assign the name of the variable to a non NA in a data frame with multiple variables, Effcient shifting in R data.table with missing values. URLs (e.g. See the errors argument for open() for a full list of options. StringIO (lines), header = None, dtype = str) def pandas_to_s3 (df, client, bucket, key): # write DF to string stream: csv_buffer = io. Operating pandas dataframe inside a dictionary when using iteritems(), Use Scikit Learn to do linear regression on a time series pandas data frame, Pandas: not sure if this is a pivot or stack or whether there is a built in function for this. If the value of index=False header=True, or index=True header=false, or index=False header=False, the value of index_label either True or False has no significance. Why would Henry want to close the breach? Not the answer you're looking for? You may also want to check out all available functions/classes of the module io , or try the search function . Download data.csv. Extra options that make sense for a particular storage connection, e.g. To learn more, see our tips on writing great answers. Python StringIO We can even use StringIO as well which is extremely similar in use to BytesIO. Defaults to os.linesep, which depends on the OS in which How to smoothen the round border of a created buffer to make it look more natural? Printing 2 Python Pandas DataFrame in HTML Tables in iPython Notebook, Setting 1 or 0 to new Pandas column conditionally. Should teachers encourage good students to help weaker ones? forwarded to fsspec.open. file object is passed, mode might need to contain a b. For this MWE I'll have a file on disk, read it into BytesIO, then read that into Pandas. I exported a table as a .csv file from DBeaver. String of length 1. import gzip from io import BytesIO import pandas as pd import numpy as np df = pd.DataFrame (np.random.randn (100, 4), columns=list ('ABCD')) b_buf = BytesIO () with gzip.open (b_buf, 'wb') as f: f.write (df.to_csv ().encode ()) b_buf.seek (0) with open ("my_zip.zip", "wb") as f: f.write (b_buf.getvalue ()) Tech at The Sparks Foundation 1025 Field delimiter for the output file. Python. Pandas - Resampling and Interpolation with time float64, Add labels and title to a plot made using pandas. Comma-separated values or CSV files are plain text files that contain data separated by a comma. header and index are True, then the index names are used. 1 Answer Sorted by: 18 The error says the file is empty. 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