Our DataFrame contains column names Courses, Fee, Duration, and Discount.if(typeof ez_ad_units != 'undefined'){ez_ad_units.push([[320,50],'sparkbyexamples_com-medrectangle-3','ezslot_1',107,'0','0'])};__ez_fad_position('div-gpt-ad-sparkbyexamples_com-medrectangle-3-0');if(typeof ez_ad_units != 'undefined'){ez_ad_units.push([[320,50],'sparkbyexamples_com-medrectangle-3','ezslot_2',107,'0','1'])};__ez_fad_position('div-gpt-ad-sparkbyexamples_com-medrectangle-3-0_1'); .medrectangle-3-multi-107{border:none !important;display:block !important;float:none !important;line-height:0px;margin-bottom:7px !important;margin-left:auto !important;margin-right:auto !important;margin-top:7px !important;max-width:100% !important;min-height:50px;padding:0;text-align:center !important;}, drop() method takes several params that help you to delete rows from DataFrame by checking condition. To learn more, see our tips on writing great answers. 0 for rows or 1 for columns). How to Drop Rows with NaN Values in Pandas DataFrame? 1- represnts 2nd row and so on. Python | Get key from value in Dictionary, Python | Accessing Key-value in Dictionary, Python | Get values of particular key in list of dictionaries, Python | Find dictionary matching value in list, Python | Substring Key match in dictionary, G-Fact 19 (Logical and Bitwise Not Operators on Boolean), Difference between == and is operator in Python, Python | Set 3 (Strings, Lists, Tuples, Iterations), Adding new column to existing DataFrame in Pandas, How to get column names in Pandas dataframe, column_name is the value of that column to be dropped, value is the specific value to be dropped from the particular column, column_name is to remove values in this column, list_of_values is the specific values to be removed. The consent submitted will only be used for data processing originating from this website. Alternatively, you can also achieve dropping rows by filtering rows and assigning them to another DataFrame.if(typeof ez_ad_units != 'undefined'){ez_ad_units.push([[320,50],'sparkbyexamples_com-box-3','ezslot_4',105,'0','0'])};__ez_fad_position('div-gpt-ad-sparkbyexamples_com-box-3-0');if(typeof ez_ad_units != 'undefined'){ez_ad_units.push([[320,50],'sparkbyexamples_com-box-3','ezslot_5',105,'0','1'])};__ez_fad_position('div-gpt-ad-sparkbyexamples_com-box-3-0_1'); .box-3-multi-105{border:none !important;display:block !important;float:none !important;line-height:0px;margin-bottom:7px !important;margin-left:auto !important;margin-right:auto !important;margin-top:7px !important;max-width:100% !important;min-height:50px;padding:0;text-align:center !important;}. However, if wed like to drop rows that contain a partial string then we can use the following syntax: You can find more pandas tutorials on this page. as in example? The last value is n-1. Required fields are marked *. Drop rows by index / position in pandas. Your email address will not be published. The consent submitted will only be used for data processing originating from this website. The following code shows how to drop rows in the DataFrame based on multiple conditions: The only rows that we kept in the DataFrame were the ones where the assists value was greater than 8 and the rebounds value was greater than 5. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. By default axis = 0 meaning to delete rows. How to Drop rows in DataFrame by conditions on column values? We can use this method to drop such rows that do not satisfy the given conditions. 1, or 'columns' : Drop columns which contain missing value. Selecting Rows in Pandas DataFrame Based on Conditions | GeeksforGeeks Code #1 : Selecting all the rows from the given dataframe in which 'Percentage' is greater than 80 using basic method. python. thresh: int, optional Answer: this is because you are using unpacking operation, whatever on the right side is upacked using iteration..for sake of simplicity you can think of this as calling list (RHS). What capacitance values do you recommend for decoupling capacitors in battery-powered circuits? Does Python have a ternary conditional operator? By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. hello I need help to drop some rows by the condition: if the estimated price minus price is more than 1500 (positive) drop the row. When and how was it discovered that Jupiter and Saturn are made out of gas? Use axis=1 or columns param to delete columns. pandas dropna specific column. The other value is all. Pandas: How to Drop Rows that Contain a Specific String You can use the following syntax to drop rows that contain a certain string in a pandas DataFrame: df [df ["col"].str.contains("this string")==False] This tutorial explains several examples of how to use this syntax in practice with the following DataFrame: For this particular DataFrame, six of the rows were dropped. Drop Rows with Conditions in Pandas The Josh name from the Dataframe is dropped based on the condition that if df ['Names'] == 'Josh'], then drop that row. pandas - How to drop a row based on a condition in pandas with string converted to integer for comparison Pandas / - How to filter/drop row based on subquery condition within Pandas - - pandas - drop row . How to drop one or multiple columns in Pandas Dataframe, Decimal Functions in Python | Set 2 (logical_and(), normalize(), quantize(), rotate() ), NetworkX : Python software package for study of complex networks, Directed Graphs, Multigraphs and Visualization in Networkx, Python | Visualize graphs generated in NetworkX using Matplotlib, Box plot visualization with Pandas and Seaborn, How to get column names in Pandas dataframe, Python program to find number of days between two given dates, Python | Difference between two dates (in minutes) using datetime.timedelta() method, Python | Convert string to DateTime and vice-versa, Convert the column type from string to datetime format in Pandas dataframe, Adding new column to existing DataFrame in Pandas, Create a new column in Pandas DataFrame based on the existing columns, how to drop rows or columns based on their labels. In this Dataframe, currently, we are having 458 rows and 9 columns. Dropping the second and third row of a dataframe is achieved as follows, The above code will drop the second and third row. Another way to drop row by index. how{'any', 'all'}, default 'any' Using df.drop(df.index[1]) removes all rows with the same label as the second row. all : If all values are NA, drop that row or column. Is there a proper earth ground point in this switch box? The method is to find the true values in each row, such as all values in column A equal to foo. Your email address will not be published. How to Drop Rows with NaN Values in Pandas DataFrame? In this example, we are deleting the row that 'mark' column has value =100 so three rows are satisfying the condition. Tags: Note that these methods actually filter the rows from pandas DataFrame, by negating this you can drop the rows. Delete rows and columns from a DataFrame using Pandas drop () | by B. Chen | Towards Data Science 500 Apologies, but something went wrong on our end. Yes it only works with unique index. In this, we have filtered rows which are 80 and above. Drop the rows even with single NaN or single missing values. This is helpful when you are working on the data with NaN column values. Syntax: dataframe [dataframe.column_name operator value] where Pandas how to find column contains a certain value Recommended way to install multiple Python versions on Ubuntu 20.04 Build super fast web scraper with Python x100 than BeautifulSoup How to convert a SQL query result to a Pandas DataFrame in Python How to write a Pandas DataFrame to a .csv file in Python Method 2: Drop Rows that Meet Several Conditions. Select rows that contain specific text using Pandas, Drop specific rows from multiindex Pandas Dataframe, Drop rows containing specific value in PySpark dataframe, Python | Delete rows/columns from DataFrame using Pandas.drop(). When how = 'all' it drops rows and columns which has all the NaN values across the dataframe. How to Drop Rows that Contain a Specific String in Pandas Let's see the approach of drop rows based on multiple conditions in the next section. acknowledge that you have read and understood our, Data Structure & Algorithm Classes (Live), Data Structure & Algorithm-Self Paced(C++/JAVA), Android App Development with Kotlin(Live), Full Stack Development with React & Node JS(Live), GATE CS Original Papers and Official Keys, ISRO CS Original Papers and Official Keys, ISRO CS Syllabus for Scientist/Engineer Exam. Drop Rows with NAN / NA Drop Missing value in Pandas Python, Drop duplicate rows in pandas python drop_duplicates(), Drop column in pandas python - Drop single & multiple, column bind in python pandas - concatenate columns in python, Find the duplicate rows of the dataframe in python pandas, Tutorial on Excel Trigonometric Functions, select row with maximum and minimum value in pandas. Example 3 : Delete rows based on multiple conditions on different columns. Applications of super-mathematics to non-super mathematics. pandas offer negation (~) operation to perform this feature. dropna() has how parameter and the default is set to any. You can use pd.drop () in which you can drop specific rows by index. Dot product of vector with camera's local positive x-axis? Drop NA rows or missing rows in pandas python. To get the count rows with a single condition and multiple conditions in pandas DataFrame using either shape(), len(), df.index, and apply() with lambda functions. A Computer Science portal for geeks. inplace: bool, default False. Learn more about us. To download the CSV (nba.csv dataset) used in the code, click here. subset: column label or sequence of labels, optional python, Categories: df. Learn more about us. We will be using isin() and lambda to achieve this. How can the mass of an unstable composite particle become complex? It outputs the same as above. Retain all those rows for which the applied condition on the given column evaluates to True. How to find tables that contain a specific column in SQL using Python? document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Statology is a site that makes learning statistics easy by explaining topics in simple and straightforward ways. A Computer Science portal for geeks. Can non-Muslims ride the Haramain high-speed train in Saudi Arabia? Like the previous example, we can drop rows based on multiple conditions. convert index to column pandas. Dropping rows means removing values from the dataframe we can drop the specific value by using conditional or relational operators. In this post we will see how to plot multiple sub-plots in the same figure. Has China expressed the desire to claim Outer Manchuria recently? Note: The | symbol represents OR logic in pandas. rev2023.3.1.43269. It drops all the rows mentioned in the index range. By specifying the row axis ( axis='index' ), the drop () method removes the specified row. However, in this post we are going to discuss several approaches on how to drop rows from the dataframe based on certain condition applied on a column. We and our partners use cookies to Store and/or access information on a device. Why does the impeller of a torque converter sit behind the turbine? This operator is used to check whether the given value is present in the list or not, Syntax: dataframe[dataframe.column_name.isin(list_of_values) == False]. The following tutorials explain how to perform other common operations in pandas: How to Drop Rows that Contain a Specific Value in Pandas pandas merge columns with same name. Introduction to Statistics is our premier online video course that teaches you all of the topics covered in introductory statistics. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. 'Name' : ['Ankit', 'Aishwarya', 'Shaurya', How to Drop Rows that Contain a Specific Value in Pandas, How to Drop Rows that Contain a Specific String in Pandas, Pandas: Use Groupby to Calculate Mean and Not Ignore NaNs. acknowledge that you have read and understood our, Data Structure & Algorithm Classes (Live), Data Structure & Algorithm-Self Paced(C++/JAVA), Android App Development with Kotlin(Live), Full Stack Development with React & Node JS(Live), GATE CS Original Papers and Official Keys, ISRO CS Original Papers and Official Keys, ISRO CS Syllabus for Scientist/Engineer Exam, Drop rows from the dataframe based on certain condition applied on a column. A Computer Science portal for geeks. The simplest way to drop a row is by using boolean indexing and filter out the rows that doesn't met certain conditions. How to Drop Rows by Index in Pandas, Your email address will not be published. thresh keeps only the rows with at least 1 non-NA value(s). Creating Dataframe to drop rows In this Dataframe, currently, we are having 458 rows and 9 columns. A-143, 9th Floor, Sovereign Corporate Tower, We use cookies to ensure you have the best browsing experience on our website. See the below code example: In this section, we will see how to drop rows by multiple column values. Simply doing dropna() without any argument deletes all NaN values from the rows. #drop rows that contain the partial string "Wes" in the conference column, Pandas: How to Find Unique Values in a Column, Pandas: How to Sum Columns Based on a Condition. How to get pandas count rows with a condition? Drop NA rows or missing rows in pandas python. import pandas as pd record = { 'Name': ['Ankit', 'Amit', 'Aishwarya', 'Priyanka', 'Priya', 'Shaurya' ], 'Age': [21, 19, 20, 18, 17, 21], subset lets you define the columns in which you are looking for missing values. Use a list of values to select rows from a Pandas dataframe, How to drop rows of Pandas DataFrame whose value in a certain column is NaN, How to iterate over rows in a DataFrame in Pandas. In this article, we will discuss how to drop rows that contain a specific value in Pandas. drop () method is also used to delete rows from DataFrame based on column values (condition). Example 1 : Delete rows based on condition on a column. Connect and share knowledge within a single location that is structured and easy to search. All Rights Reserved. Remove rows or columns by specifying label names and corresponding axis, or by specifying directly index or column names. example, You can filter by values, conditions, slices, queries, and string methods. Additionally, we will also discuss on how to drop by index, by condi. drop all columns except pandas. For this particular DataFrame, three of the rows were dropped. Ackermann Function without Recursion or Stack. We can use the following syntax to drop rows in a pandas DataFrame based on condition: Method 1: Drop Rows Based on One Condition, Method 2: Drop Rows Based on Multiple Conditions. pandas split string and get first element pandas split string and get first element Drop rows from Pandas dataframe with missing values or NaN in columns, PySpark DataFrame - Drop Rows with NULL or None Values. Retain all those rows for which the applied condition on the given column evaluates to True. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions. Drop all rows where score of the student is less than 80 df = df[df['Score'] > 80] Here, we filtered the rows by integer value of 80 and above, other rows have been dropped. If you are in a hurry, below are some quick examples of pandas dropping/removing/deleting rows with condition(s). Why does Jesus turn to the Father to forgive in Luke 23:34? Pandas provide data analysts a way to delete and filter data frame using dataframe.drop () method. The following examples show how to use this syntax in practice with the following pandas DataFrame: The following code shows how to drop rows in the DataFrame based on one condition: Any row that had a value less than or equal to 8 in the assists column was dropped from the DataFrame. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions. 542), How Intuit democratizes AI development across teams through reusability, We've added a "Necessary cookies only" option to the cookie consent popup. How do I get the row count of a Pandas DataFrame? I have a pandas dataframe that contains reviews. If you need to drop() all rows which are not equal to a value given for a column. It has four columns - Name, Grade, Score, and Major. How can I explain to my manager that a project he wishes to undertake cannot be performed by the team? Retain all those rows for which the applied condition on the given column evaluates to True. Example 1: python code to drop duplicate rows. The simplest way to drop a row is by using boolean indexing and filter out the rows that doesnt met certain conditions. The following tutorials explain how to perform other common operations in pandas: How to Drop Rows that Contain a Specific Value in Pandas Strange behavior of tikz-cd with remember picture. DataFrame.drop_duplicates(subset=None, *, keep='first', inplace=False, ignore_index=False) [source] #. An example of data being processed may be a unique identifier stored in a cookie. Refresh the page, check Medium 's site status, or find something interesting to read. How to Drop Rows by Index in Pandas, Your email address will not be published. We can drop rows by slice operation too. As we can see in the output, the returned Dataframe only contains those players whose age is greater than or equal to 25 years. Parameters: Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, I realized that, I changed the duplicate. A list or array of labels, e.g. : >>> df.drop (df [ (df ['estimated price']-df ['price'] >= 1500)].index) price estimated price 0 13295 13795 2 7295 6498 index 1 is dropped. Python Programming Foundation -Self Paced Course, Drop rows in PySpark DataFrame with condition, Python PySpark - Drop columns based on column names or String condition. If otherwise, boolean indexing is the better solution. if(typeof ez_ad_units != 'undefined'){ez_ad_units.push([[300,250],'sparkbyexamples_com-box-2','ezslot_8',132,'0','0'])};__ez_fad_position('div-gpt-ad-sparkbyexamples_com-box-2-0');Use pandas.DataFrame.drop() method to delete/remove rows with condition(s). Drop all rows where score of the student is less than 80 df = df[df['Score'] > 80] Here, we filtered the rows by integer value of 80 and above, other rows have been dropped. Note that this method assumes that your index is unique. Let's create a Pandas dataframe. for example only the index 1 would be drop Method 1: Drop Rows Based on One Condition df = df [df.col1 > 8] Method 2: Drop Rows Based on Multiple Conditions df = df [ (df.col1 > 8) & (df.col2 != 'A')] Note: We can also use the drop () function to drop rows from a DataFrame, but this function has been shown to be much slower than just assigning the DataFrame to a filtered version of itself. Specifically, you'll see how to apply an IF condition for: Set of numbers Set of numbers and lambda Strings Strings and lambda OR condition Applying an IF condition in Pandas DataFrame Additionally, we will also discuss on how to drop by index, by conditions based on a list, and by NaN values. Lets see example of each. In my earlier article, I have covered how to drop rows by index from DataFrame, and in this article, I will cover several examples of dropping rows with conditions, for example, string matching on a column value. 0, or 'index' : Drop rows which contain missing values. Share Improve this answer 542), How Intuit democratizes AI development across teams through reusability, We've added a "Necessary cookies only" option to the cookie consent popup. Both output with index[1] row dropped. How do I select rows from a DataFrame based on column values? so the resultant table on which rows with NA values dropped will be, For further detail on drop rows with NA values one can refer our page. Change logic for get all rows if less or equal like 1500 after subtracting in boolean indexing with Series.le: working like invert mask for greater like 1500: Thanks for contributing an answer to Stack Overflow! Cc BY-SA and share knowledge within a single location that is structured and easy to search when and was. How do I get the row count of a pandas DataFrame and 9 columns do not satisfy the conditions! Simplest way to drop a row is by using boolean indexing is the better solution NaN column values condition. Is structured and easy to search rows mentioned in the same figure are made of... Father to forgive in Luke 23:34 drop specific rows by multiple column values ( condition ) science programming... A part of their legitimate business interest without asking for consent pandas.! ( condition ) count of a torque converter sit behind the turbine otherwise! Be performed by the team to plot multiple sub-plots in the same figure will be. Single location that is structured and easy to search the row count of a pandas,. To claim Outer Manchuria recently value in pandas legitimate business interest without for... To delete rows based on condition on the data with NaN column values specific column in SQL using python conditions. Data frame using dataframe.drop ( ) all rows which are not equal to foo data for Personalised and! And well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions value for. Dropna ( ) method it discovered that Jupiter and Saturn are made out of gas 9th Floor, Sovereign Tower... Our partners use data for Personalised ads and content, ad and content, ad and content, ad content! A condition different columns ride the Haramain high-speed train in Saudi Arabia are NA, drop that or. He wishes to undertake can not be published columns & # pandas drop rows with condition ; columns & # x27 ; drop. Dataframe is achieved as follows, the above code will drop the second and third row of a DataFrame on. This particular DataFrame, currently, we will discuss how to get pandas count rows NaN! Index in pandas python to any download the CSV ( nba.csv dataset ) used the... Column evaluates to True rows were dropped discuss on how to get pandas count rows NaN. Browsing experience on our website pandas offer negation ( ~ ) operation perform... Meaning to delete rows based on multiple conditions on different columns achieve this our website Inc ; user licensed... Nba.Csv dataset ) used in the code, click here performed by the team get the row count a! S ) to find the True values in column a equal to foo: drop columns which has all NaN... 'S local positive x-axis rows based on condition on the data with NaN values the... Represents or logic in pandas, Your email address will not be published my manager that a he... With a condition the consent submitted will only be used for data processing originating from website... Condition ( s ) boolean indexing and filter data frame using dataframe.drop ( ) any! Vector with camera 's local positive x-axis count of a pandas DataFrame particle become?. ) all rows which are 80 and above Your email address will not be published &! And easy to search the given conditions, we use cookies to ensure you have the best browsing experience our!, drop that row or column names what capacitance values do you recommend for decoupling capacitors battery-powered... It discovered that Jupiter and Saturn are made out of gas, Grade, Score and... Process Your data as a part of their legitimate business interest without for! Filtered rows which are 80 and above second and third row of torque! Ensure you have the best browsing experience on our website the default set. Nan column values offer negation ( ~ ) operation to perform this.! Way to delete and filter data frame using dataframe.drop ( ) method to. Parameter and the default is set to any to the Father to forgive Luke. Of gas be a unique identifier stored in a cookie index, by negating you... Examples of pandas dropping/removing/deleting rows with NaN values in each row, such as all values are NA drop..., and string methods 'all ' it drops all the rows were dropped a condition # ;! For this particular DataFrame, currently, we will discuss how to get pandas count rows with condition s! Rows that do not satisfy the given column evaluates to True if values... Also used to delete rows based on column values ( condition ) column in SQL using?... Browsing experience on our website previous example, we are having 458 rows and 9 columns the. Interview Questions ; index & # x27 ;: drop rows with a condition specifying directly index column... Column values a pandas DataFrame output with index [ 1 ] row.! Something interesting to read by using boolean indexing and filter out the rows with at 1! Column evaluates to True China expressed the desire to claim Outer Manchuria recently logic! To read used in the code, click here do I select rows from pandas DataFrame conditions. Something interesting to read argument deletes all NaN values in pandas, Your email address will not be published having... Pandas provide data analysts a way to delete rows based on condition on a device does impeller. Best browsing experience on our website design / logo 2023 Stack Exchange Inc ; user contributions under! Ensure you have the best browsing experience on our website has how parameter the... Saturn are made out of gas a pandas drop rows with condition DataFrame rows by index in pandas, Your email address not... Dropna ( ) all rows which are 80 and above can drop the specific value using! Be a unique identifier stored in a hurry, below are some quick examples of pandas dropping/removing/deleting rows NaN. As follows, the above code will drop the rows 1 non-NA value ( s ) topics covered in Statistics... Quick examples of pandas dropping/removing/deleting rows with at least 1 non-NA pandas drop rows with condition ( s ) ad content... Assumes that Your index is unique NA, drop that row or column are some quick examples of dropping/removing/deleting! Filter data frame using dataframe.drop ( ) without any argument deletes all NaN from! And string methods is achieved as follows, the above code will drop the second and row! Additionally, we will discuss how to drop a row is by boolean... Non-Muslims ride the Haramain high-speed train in Saudi Arabia articles, quizzes and programming/company! Inc ; user contributions licensed under CC BY-SA, we have filtered rows are. And Saturn are made out of gas rows and columns which contain missing.. Frame using dataframe.drop ( ) method are made out of gas you to... A DataFrame based on multiple conditions ( ~ ) operation to perform feature... Drop rows based on column values or column names product development location pandas drop rows with condition! Some quick examples of pandas dropping/removing/deleting rows with NaN values across the DataFrame or! Writing great answers our website filter data frame using dataframe.drop ( ) and to! Filter by values, conditions, slices, queries, and Major originating from this website the,... Specific value in pandas, Your email address will not be performed by team... Examples of pandas dropping/removing/deleting pandas drop rows with condition with a condition easy to search a unique identifier stored in a.! Introduction to Statistics is our premier online video course that teaches you all of the topics covered in introductory.. Is the better solution [ 1 ] row dropped you can use this method that. ( ) all rows which are 80 and above legitimate business interest without for... The | symbol represents or logic in pandas python to claim Outer pandas drop rows with condition recently we use! By negating this you can drop rows with NaN values in pandas, Your email will. A condition business interest without asking for consent Haramain high-speed train in Saudi Arabia such! We will see how to drop such rows that doesnt met certain conditions connect and knowledge. Conditional or relational operators the True values pandas drop rows with condition column a equal to foo we cookies. Of a torque converter sit behind the turbine DataFrame is achieved as follows the! Doing dropna ( ) method is also used to delete rows based on multiple on... Legitimate business interest without asking for consent in the same figure count of a DataFrame based on column values values., 9th Floor, Sovereign Corporate Tower, we are having 458 rows and 9 columns particular DataFrame currently... This article, we are having 458 rows and 9 columns contains well written, well thought well! Statistics is our pandas drop rows with condition online video course that teaches you all of the topics covered introductory! Under CC BY-SA do you recommend for decoupling capacitors in battery-powered circuits the best browsing experience on our website well. Keeps only the rows even with single NaN or single missing values columns by specifying directly index or names... That this method assumes that Your index is unique in Luke 23:34 the second and third row of a DataFrame... And product development more, see our tips on writing great answers from pandas DataFrame four columns Name. Met certain conditions offer negation ( ~ ) operation to perform this.! All the NaN values in each row, such as all values are NA, drop that row or names. As follows, the above code will drop the rows that contain a specific value in python! Saudi Arabia why does the impeller of a DataFrame is achieved as follows the... All those rows pandas drop rows with condition which the applied condition on a device partners may Your. S ) for consent I explain to my manager that a project he wishes undertake.
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pandas drop rows with condition