Display the number of lines that you have changed.

amount_of_work.py

#!/usr/bin/python2.7

from mercurial import patch, scmutil, ui, hg
from datetime import datetime
from time import gmtime
from itertools import groupby

def changedline(ui, repo, ctx1, ctx2):
  added, removed = 0, 0
  diff = ''.join(patch.diff(repo, ctx1.node(), ctx2.node()))
  for line in diff.split('\n'):
    if line.startswith('+') and not line.startswith('+++ '):
      added += 1
    if line.startswith('-') and not line.startswith('--- '):
      removed += 1
  return (added, removed)

def formatdate(ui, repo, ctx, fmt):
  t, tz = ctx.date()
  return datetime(*gmtime(t - tz)[:6]).strftime(fmt)

def listchanges(ui, repo, to):
  for i in range(to.rev()):
    ctx = repo[i]
    parents = ctx.parents()
    if len(parents) != 1:
      continue
    if ctx.user() != user:
      continue
    changed = changedline(ui, repo, parents[0], ctx)
    date = formatdate(ui, repo, ctx, '%Y/%m')
    yield ctx, changed, date

if __name__ == '__main__':
  repo = hg.repository(ui.ui(), '.')
  ui = repo.ui
  user = ui.username()

  print 'USER:', user
  print 'CHANGES:'

  tip = repo.changectx('tip')
  for date, changes in groupby(listchanges(ui, repo, tip), lambda x: x[2]):
    added, removed = 0, 0
    for c in changes:
      added += c[1][0]
      removed += c[1][1]
    print '  %s: %6s(added) %6s(removed)' % (date, added, removed)