Convert a dictionary to a pandas dataframe
Solution 1
You dict has only one record use list:
import pandas as pd
d = {'id': 'CS2_056', 'cost': 2, 'name': 'Tap'}
df = pd.DataFrame([d], columns=d.keys())
print df
Output:
id cost name
0 CS2_056 2 Tap
Solution 2
An alternative way to create a dataframe with a single row from a dictionary is by creating an empty dataframe first and then append
ing to it:
import pandas as pd
d = {'id': 'CS2_056', 'cost': 2, 'name': 'Tap'}
df = pd.DataFrame().append(d, ignore_index=True)
print(df)
cost id name
0 2.0 CS2_056 Tap
Note that this method is significantly slower than @Serenity 's solution so definitely do not choose this method if you are concerned about performance. But having options is always nice.
Solution 3
Might be you are using python3. in python3 we have list there
pd.DataFrame(list(d.items()), columns=['id', 'cost','name'])
Solution 4
Easy command, just make sure you enclose your dictionary in square brackets.
d = {'id': 'CS2_056', 'cost': 2, 'name': 'Tap'}
df = pd.DataFrame([d])
df
Solution 5
While this question does have a duplicate (Python Dictionary to Pandas Dataframe), I believe there's a simplier answer than those provided there.
Convert the values to lists:
d = {'id': ['CS2_056'], 'cost': [2], 'name': ['Tap']}
then simply:
df = pd.DataFrame(d)
print(df)
# cost id name
# 0 2 CS2_056 Tap
Keep in mind that if columns order matter you'd still need to explicitly provide columns
to DataFrame
:
df = pd.DataFrame(d, columns=['id', 'cost', 'name'])
print(df)
# id cost name
# 0 CS2_056 2 Tap
user3302483
Updated on March 18, 2021Comments
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user3302483 about 3 years
I'm trying to convert a dictionary that only has 1 record to a pandas dataframe. I've used the following code from other solutions:
d = {'id': 'CS2_056', 'cost': 2, 'name': 'Tap'} pd.DataFrame(d.items(), columns=['id', 'cost','name'])
But I get the following error:
PandasError: DataFrame constructor not properly called!