def _find_df_in_history(shell):
dfs = shell.run_line_magic("who_ls", "DataFrame")
history = HistoryAccessor()
commands = [
command for _, _, command in history.get_tail(include_latest=True)
]
return _match_df_name(dfs, commands)
def _parse_database(sqlite_database: str) -> Results:
hist = HistoryAccessor(hist_file=sqlite_database)
total_sessions = hist.get_last_session_id()
for sess in range(1, total_sessions):
# get when this session started, use that as timestamp
session_info = hist.get_session_info(sess)
assert len(session_info) == 5 # sanity checks
start_time = session_info[1]
assert isinstance(start_time, datetime)
for msg in hist.get_range(sess).fetchall(): # sqlite cursor
assert len(msg) == 3
assert isinstance(msg[-1], str)
yield Command(command=msg[-1], dt=start_time)
def get_last_n_commands(n):
"""
Find the last n commands entered in the IPython session
Parameters
----------
n : int
Number of commands to retrieve
Returns
-------
commands : str
Block of text representing user input
"""
# Ignore warnings generated by the HistoryAccessor. This can be removed
# when https://github.com/ipython/ipython/pull/11054 reaches our release
# environment
with warnings.catch_warnings():
warnings.simplefilter('ignore', UserWarning)
ha = HistoryAccessor()
# Parse the last n commands of the IPython history, joining printed
# messages
return '\n'.join([cmd[2] for cmd in ha.get_tail(n, include_latest=True)])
Example:
./ipython-get-history.py 57 record.ipy
This script is a simple demonstration of HistoryAccessor. It should be possible
to build much more flexible and powerful tools to browse and pull from the
history database.
"""
import sys
from IPython.core.history import HistoryAccessor
session_number = int(sys.argv[1])
if len(sys.argv) > 2:
dest = open(sys.argv[2], "w")
raw = not sys.argv[2].endswith('.py')
else:
dest = sys.stdout
raw = True
with dest:
dest.write("# coding: utf-8\n")
# Profiles other than 'default' can be specified here with a profile= argument:
hist = HistoryAccessor()
for session, lineno, cell in hist.get_range(session=session_number, raw=raw):
cell = cell.encode('utf-8') # This line is only needed on Python 2.
dest.write(cell + '\n')
special syntax) will be extracted.
Example:
./ipython-get-history.py 57 record.ipy
This script is a simple demonstration of HistoryAccessor. It should be possible
to build much more flexible and powerful tools to browse and pull from the
history database.
"""
import sys
import codecs
from IPython.core.history import HistoryAccessor
session_number = int(sys.argv[1])
if len(sys.argv) > 2:
dest = open(sys.argv[2], "w")
raw = not sys.argv[2].endswith('.py')
else:
dest = sys.stdout
raw = True
dest.write("# coding: utf-8\n")
# Profiles other than 'default' can be specified here with a profile= argument:
hist = HistoryAccessor()
for session, lineno, cell in hist.get_range(session=session_number, raw=raw):
# To use this in Python 3, remove the .encode() here:
dest.write(cell.encode('utf-8') + '\n')