Issue during custom module's update

Good morning.

If I update a custom module after having edited the python code, (sao or ssh / all 3 py_cache dirs deleted), sometimes the code is written as if nothing had changed. (tested 20 times in a row with the same python code)
The day after, whereas I haven’t done anything since the day before, the code is executed with the changes.

What kind of Python code?
Did you restart the server? Did you restart the client?

I meant “read” instead of “written”.
I restart trytond.service and ip:8000 before calling the cronjob again.
This kind of code :

		wcapi = API(
			url="https://www.xyz.com/",
			consumer_key='aaaaaaaaaaaaaaaaaaaaaaaa', #"clé 003"
			consumer_secret='bbbbbbbbbbbbbbbbbbbbbbbbb',
			#wp_api=True,
			#version="wc/v3",
			#query_string_auth=True,
			#verify_ssl=False
		)

		############################################### produits ###############################################
		d1 = datetime.datetime.now()
		d2 = datetime.datetime.strptime(d1.strftime('%Y-%m-%d %H:%M:%S'), '%Y-%m-%d %H:%M:%S') + datetime.timedelta(days=-10, hours=2, minutes=-15)
		WP_obj = Pool().get('woocommerce.products')
		dicts = []
		for product in wcapi.get("products").json():		
			if product['id'] is not None and WP_obj.search_count(('product_id', '=', product['id'])) == 0:
			#if (datetime.datetime.strptime(product['id'], '%Y-%m-%dT%H:%M:%S') > d2):
				dict = {'json':str(product), 'product_id':product['id']}
				dicts.append(dict)
				if len(dicts) != 0:
					WP_obj.create(dicts)
					dicts = []
					f = codecs.open('/opt/clients/paging/woocommerce_api/WoocommerceProducts_' + d1.strftime('%Y_%m_%d_%H_%M_%S') + '.txt', mode='ab+', encoding="utf-8")
					datas = '' + str(product['id']) + "\r\n" + str(product) + "\r\n\n"
					f.write(datas)
					f.close()
				dicts_tryton_product_template = []
				tryton_product_template = {
					'name':product['name'],
					'salable':True,
					'default_uom':1,
					'sale_uom':1,
					'account_category':1
				}
				WPrTe_obj = Pool().get('product.template')
				dicts_tryton_product_template.append(tryton_product_template)
				new_pt_ids = WPrTe_obj.create(dicts_tryton_product_template)
				for t in WPrTe_obj.browse(new_pt_ids):
					product_template_id = t.id
				dicts_tryton_product = []
				tryton_product = {
					'template':product_template_id,
					'description':product['description'],
					'id_produit_woocommerce':product['id']
				}
				dicts_tryton_product.append(tryton_product)
				WPP_obj = Pool().get('product.product')
				new_p_ids = WPP_obj.create(dicts_tryton_product)
				for p in WPP_obj.browse(new_p_ids):
					product_id = p.id
				dicts_tryton_product_cost_price = []
				tryton_product_cost_price = {
					'product':product_id,
					'cost_price':product['price'],
					'company':1
				}
				dicts_tryton_product_cost_price.append(tryton_product_cost_price)
				WCP_obj = Pool().get('product.cost_price')
				WCP_obj.create(dicts_tryton_product_cost_price)
				# delete record cost price = 0
				cp_ids = WCP_obj.search([('product', '=', product_id),('cost_price', '=', 0),('company', '=', 1)])
				WCP_obj.delete(WCP_obj.browse(cp_ids))
				dicts_tryton_product_list_price = []
				tryton_list_price = {
					'template':product_template_id,
					# on n'a pas le prix de revient
					#'list_price':product['regular_price']
					'list_price':product['price']
				}
				dicts_tryton_product_list_price.append(tryton_list_price)
				WLP_obj = Pool().get('product.list_price')
				WLP_obj.create(dicts_tryton_product_list_price)