feat: bench pip *

Directly install/update/remove packages from your env using bench pip
commands. Pretty much just like using pip

To check help don't add the --help flag, use the -h flag instead, use the pip help command. For example, checking help for pip install can be done by

    bench pip help install
    bench pip install -h

bench/commands/__init__.py

@@ -31,11 +31,12 @@ def bench_command(bench_path='.'):
 	setup_logging(bench_path=bench_path)
 
 
-from bench.commands.make import init, get_app, new_app, remove_app
+from bench.commands.make import init, get_app, new_app, remove_app, pip
 bench_command.add_command(init)
 bench_command.add_command(get_app)
 bench_command.add_command(new_app)
 bench_command.add_command(remove_app)
+bench_command.add_command(pip)
 
 
 from bench.commands.update import update, retry_upgrade, switch_to_branch, switch_to_master, switch_to_develop

bench/commands/make.py

@@ -93,3 +93,14 @@ def include_app_for_update(app_name):
 	"Include app from updating"
 	from bench.app import remove_from_excluded_apps_txt
 	remove_from_excluded_apps_txt(app_name)
+
+
+@click.command('pip', context_settings={"ignore_unknown_options": True}, help="For pip help use `bench pip help [COMMAND]` or `bench pip [COMMAND] -h`")
+@click.argument('args', nargs=-1)
+@click.pass_context
+def pip(ctx, args):
+	"Run pip commands in bench env"
+	import os
+	from bench.utils import get_env_cmd
+	env_pip = get_env_cmd('pip')
+	os.execv(env_pip, (env_pip,) + args)