how to remove nameerror Traceback (most recent call last) - python-3.x

Question

I am making a series using three dictionaries, in dictionary, there is no keyword or values "name"/ "null".but it is showing NameError: name 'null' is not defined
rerun the code in different jupyter notebook
import pandas as pd
p1=pd.Series({'team':'england','keyplayer':'joe root','bowler':'jofra'})
p2=pd.Series({'team':'india','keyplayer':'virat kohli','bowler':'bumhra'})
p3=pd.Series({'team':'australia','keyplayer':'steve smith','bowler':'starc'})
df=pd.DataFrame([p1,p2,p3],index=['1','2','3'])
df.head()
---------------------------------------------------------------------------
NameError Traceback (most recent call last)
~\Anaconda3\lib\site-packages\IPython\core\formatters.py in __call__(self, obj)
700 type_pprinters=self.type_printers,
701 deferred_pprinters=self.deferred_printers)
--> 702 printer.pretty(obj)
703 printer.flush()
704 return stream.getvalue()
~\Anaconda3\lib\site-packages\IPython\lib\pretty.py in pretty(self, obj)
400 if cls is not object \
401 and callable(cls.__dict__.get('__repr__')):
--> 402 return _repr_pprint(obj, self, cycle)
403
404 return _default_pprint(obj, self, cycle)
~\Anaconda3\lib\site-packages\IPython\lib\pretty.py in _repr_pprint(obj, p, cycle)
695 """A pprint that just redirects to the normal repr function."""
696 # Find newlines and replace them with p.break_()
--> 697 output = repr(obj)
698 for idx,output_line in enumerate(output.splitlines()):
699 if idx:
~\Anaconda3\lib\site-packages\pandas\core\base.py in __repr__(self)
80 Yields Bytestring in Py2, Unicode String in py3.
81 """
---> 82 return str(self)
83
84
~\Anaconda3\lib\site-packages\pandas\core\base.py in __str__(self)
59
60 if compat.PY3:
---> 61 return self.__unicode__()
62 return self.__bytes__()
63
~\Anaconda3\lib\site-packages\pandas\core\frame.py in __unicode__(self)
661 width = None
662 self.to_string(buf=buf, max_rows=max_rows, max_cols=max_cols,
--> 663 line_width=width, show_dimensions=show_dimensions)
664
665 return buf.getvalue()
NameError: name 'null' is not defined
----------------after this table is showing

Answer 1

I tried to run your code in an isolated environment and I managed!
IPython:
In [1]: import pandas as pd
In [2]: p1=pd.Series({'team':'england','keyplayer':'joe root','bowler':'jofra'})
: p2=pd.Series({'team':'india','keyplayer':'virat kohli','bowler':'bumhra'})
: p3=pd.Series({'team':'australia','keyplayer':'steve smith','bowler':'starc'})
: df=pd.DataFrame([p1,p2,p3],index=['1','2','3'])
In [3]: df.head()
Out[3]:
team keyplayer bowler
1 england joe root jofra
2 india virat kohli bumhra
3 australia steve smith starc
I installed the minimum required to run: numpy==1.16.4, pandas==0.24.2 e jupyter==1.0.0
Maybe there is some problem with your libs.
I recommend you try to run your code using virtualenv and install the required libraries.
To learn more, nothing better than the Python documentation itself: https://docs.python.org/3/tutorial/venv.html