* fix: mutable defaults

* fix: missing defaults

* Remove six for PY2 compatability since our dependencies are not, PY2
  is legacy.
* Removed usages of utils from future/past libraries since they are
  deprecated. This includes 'from __future__ ...' and 'from past...'
  statements.
* Removed compatibility imports for PY2, switched from six imports to
  standard library imports.
* Removed utils code blocks that handle operations depending on PY2/3
  versions.
* Removed 'from __future__ ...' lines from templates/code generators
* Used PY3 syntaxes in place of PY2 compatible blocks. eg: metaclass

(cherry picked from commit 868228bdea)

Co-Authored-By: Shivam Mishra <scmmishra@users.noreply.github.com>

Signed-off-by: Chinmay D. Pai <chinmaydpai@gmail.com>

Signed-off-by: Chinmay D. Pai <chinmaydpai@gmail.com>
Co-authored-by: Sahil Khan <sahilkhan28297@gmail.com>

* fix(unicode): Import unicode_literals in every file

* fix(unicode): Test if safe_json_loads return unicode instead of bytes

* migration tool

* custom field for primary key added

* foreign key and multiple linking F_key issue resolved

* refined code

* many-to-one mapping temp fix

* added support for pre-process + cleaned up code

* [various] fixes to setup wizard for developer mode, frappe.enqueue_doc, share with assign

* Refactor data migration module

* added migration for hub

* Add "Skip errors" in data import tool

* move db_set to document.py

* Add Data Migration Run

* Dynamic Migration ID

* move run() from Mapping to Run

* Push Deleted Documents

* fixes

* [migration] doc operation counts

* insert and update instead of push in connection

* fix count and total_pages, skip sync if total_pages is 0

* [migration] child tables

* fix complete()

* [page] remove required libs

* Add sidebar.js, rename old sidebar.js to form_sidebar.js

* [minor] get_empty_state fixes

* svg in icon

* remove image check

* fix codacy

* fix is_child_table check

* [connector] add get_list()

* Add test for Data Migration Run

* fix test

* truncate tabNote

* fix test

* sync todo with event to fix test

* fix db count

* [mapping] export Mapping to json

* Add docs for Data Migration Tool

* [migration] pull data as list, test case

* [hub] remove mapping export to files

* Pull refactor

* [test]

* Add comments

* [mapping] exec in mapping formula

* fix codacy

* fix codacy

* Remove exec for pre-process and post-process

* Add pre and post process for Push

* Remove formula

* fixes

* [refactor] add failed_log to pull, handle error in pull

* [test] Push, pull, update

* Fix codacy, fix insert_doc for pull

* Set migration id on successful insert

* fix update_doc

* fix update_doc

* method is a function

* child table mapping

* Refactor logging

* fix update_doc again

* fix hostname, password

* update docs, minors

* Remove assign_if_none

* Remove error handling from connection methods

* [refactor] Data migration run

* Break push stages into methods

* Migration run refactor

- fix test
- add separate fields for logging

* fix codacy

* fix hostname password

* fix test

* dict.iteritems to six.iteritems(dict) for python3 compatibility

* dict.iteritems to six.iteritems(dict) for python3 compatibility

* dict.iteritems to six.iteritems(dict) for python3 compatibility

* dict.iteritems to six.iteritems(dict) for python3 compatibility

* dict.iteritems to six.iteritems(dict) for python3 compatibility

* dict.iteritems to six.iteritems(dict) for python3 compatibility

* dict.iteritems to six.iteritems(dict) for python3 compatibility

* dict.iteritems to six.iteritems(dict) for python3 compatibility

* dict.iteritems to six.iteritems(dict) for python3 compatibility

* dict.iteritems to six.iteritems(dict) for python3 compatibility

* dict.iteritems to six.iteritems(dict) for python3 compatibility

* dict.iteritems to six.iteritems(dict) for python3 compatibility

* dict.iteritems to six.iteritems(dict) for python3 compatibility

* dict.iteritems to six.iteritems(dict) for python3 compatibility

* dict.iteritems to six.iteritems(dict) for python3 compatibility

* dict.iteritems to six.iteritems(dict) for python3 compatibility

* dict.iteritems to six.iteritems(dict) for python3 compatibility

* dict.iteritems to six.iteritems(dict) for python3 compatibility

* dict.iteritems to six.iteritems(dict) for python3 compatibility

* dict.iteritems to six.iteritems(dict) for python3 compatibility

* dict.iteritems to six.iteritems(dict) for python3 compatibility

* dict.iteritems to six.iteritems(dict) for python3 compatibility

* changes print statements in file to python 3 compatible style using `__future__`

* adds python 3 style for print statements

* adds python 3 style for print statements

* adds python 3 style for print statements

* adds python 3 style for print statements

* adds python 3 style for print statements

* adds python 3 style for print statements

* adds python 3 style for print statements

* adds python 3 style for print statements

* adds python 3 style for print statements

* adds python 3 style for print statements

* adds python 3 style for print statements

* adds python 3 style for print statements

* adds python 3 style for print statements

* adds python 3 style for print statements

* adds python 3 style for print statements

* adds python 3 style for print statements

* adds python 3 style for print statements

* adds python 3 style for print statements

* adds python 3 style for print statements

* adds python 3 style for print statements

* adds python 3 style for print statements

* adds python 3 style for print statements

* adds python 3 style for print statements

* adds python 3 style for print statements

* adds python 3 style for print statements

* adds python 3 style for print statements

* adds python 3 style for print statements

* adds python 3 style for print statements

* adds python 3 style for print statements

* adds python 3 style for print statements

* adds python 3 style for print statements

* adds python 3 style for print statements

* changes deprecated md5 module to hashlib

* adds python 3 style for print statements

* adds python 3 style for print statements

* adds python 3 style for print statements

* adds python 3 style for print statements

* adds python 3 style for print statements

* adds python 3 style for print statements

* adds python 3 style for print statements

* adds python 3 style for print statements

* adds python 3 style for print statements

* adds python 3 style for print statements

* adds python 3 style for print statements

* adds python 3 style for print statements

* adds python 3 style for print statements

* adds python 3 style for print statements

* adds python 3 style for print statements

Pass the fields independent of the filters in get_doc